We are a team of sales and marketing executives, each with a minimum of 25 years experience working with Fortune 500 companies.  We share a passion for helping salespeople be more successful.  We keep things simple and actionable, and take great pride in our track record.
President & Founding Partner
Managing Director
Nadine Keller
Mary Kay Leydon
Senior Coach

Liz Lanza

Senior Coach

Laura Daley

Senior Coach

Candace Cleland

Senior Coach

Andrew Barrer

Senior Coach

David Michelson

Creative Services

Susan Strenkoski

Editorial Services

Don Heymann


Nadine Keller


Nadine Keller is President and CEO of Precision Sales Coaching & Training.  Her firm has provided strategic programs for tens of thousands of sales professionals with measurable results. Her expertise crosses sales, marketing and communications with a focus on helping organizations drive sales behavior to achieve their goals.


Throughout the 1990’s, as the Director of Sales Training for The Chase Manhattan Bank, she developed an in-depth understanding of how to use training to drive strategy. Additionally she served as the personal communications consultant to the Vice Chairman and was later appointed Director of Marketing for the Global Bank, learning the critical importance of marketing’s role in supporting the achievement of sales goals.  


In 1998, Ms. Keller left Chase to start her own consulting practice.  She worked with numerous Fortune 100 companies across many industries with a focus on complex, business-to-business sales. Frustrated with the limitations of traditional classroom training, she looked for more effective and efficient ways to develop sales effectiveness.  This work culminated in the creation of Precision Sales Coaching and Training in 2006, and Nimbus Cloud Inc., a sales enablement consulting and implementation firm, in 2014.


Ms. Keller is an avid writer and speaker.  Her most recent work is a book titled “Make it All About Them:  Winning Sales Presentations”, that was published by Wiley in 2013.

Mary Kay Leydon


Mary Kay Leydon is Managing Director at Precision Sales Coaching and Training. She brings with her nearly 25 years of communication, marketing and sales experience in the employee benefit, retirement and financial technology industries. Prior to joining Precision, Mary Kay drove strategic corporate marketing initiatives for vWise, Inc of Alisa Viejo, California, a financial technology company.  Before that, Mary Kay held a variety of positions at Lincoln Financial Group including Director of Participant Communications and Education and VP, Head of Business to Business Marketing. Prior to joining Lincoln Financial Group, Leydon was the vice president of Participant and Plan Sponsor marketing at Transamerica Retirement Services.  Before joining Transamerica, she was principal of her own consulting practice specializing in benefits communications. Her clients included Astra Zeneca, MFS, Mill Creek Capital, Merrill Lynch and the Hartford.  In addition to serving as an editorial contributor to Plan Sponsor magazine, Ms. Leydon has been nominated several times as one of the publication's 100 Most Influential People.


Mary Kay is an ardent supporter of animals and regularly volunteers at the Elmwood Park Zoo in Norristown, Pa. She also is a founder and board member of Help the Animals, a small, no-kill animal shelter. Mary Kay lives in suburban Philadelphia with her family including Aggie, a 13-year-old rescued beagle mix.

Liz Lanza


Liz Lanza is has over 25 years of business-to-business industry experience.

She spent much of her career at Pitney Bowes Inc. in various marketing and communications roles and diverse areas; including Small Business, Global Products, and Outsourcing. Her expertise falls in these areas:

• Executive-level speech coaching and development
• Delivering communication skills workshops
• Sales and management training
• Marketing content strategy and program development

• Client relationship management

Liz has worked extensively with Fortune 500 clients including American Express, Federal Express, CDW, CA, Aetna, GE, Prudential, Honeywell, NBC, USPS and others.

While at Pitney Bowes, her vision and drive resulted in notable new business growth in the small business sector. She published and distributed a small business magazine to 720,000 customers with editorial to help them run their businesses more successfully. Through the magazine and the partnerships she built, she generated millions of dollars in incremental revenue for the organization.

Liz holds a Bachelor of Arts degree in English from Central Connecticut State University. She has been recognized for her work in Diversity Leadership and won the prestigious Prism Award for diversity. She is a member of Women in Communications. Liz also speaks conversational Spanish which she continues to study and hone.

Liz lives in Westchester County, NY, with her husband and two daughters. 


Laura Daley

Laura has 20 years of experience in the design, delivery and facilitation of skill development training programs and 7 years practical management experience in the Financial Services Industry.  Laura’s expertise in experiential learning includes sales skills, presentation skills, team building, facilitation skills, communication skills, coaching skills, meeting management, problem solving, selling skills, sales management, negotiation skills, and trainer training skills.


Laura’s Financial clients include American Express, Bank of NY, CIBC, Credit Suisse, Goldman Sachs, Liberty Bank, Mony, Marsh, NYSE, Prudential, and TIAA-CREF. She has worked in numerous other industries with emphasis on media and pharmaceuticals.


Prior to consulting, Laura spent seven years with Citibank in sales, sales management and operations management positions.  There she was responsible for selling, managing, hiring, coaching, and tracking performance.  She also designed incentive programs for improving productivity levels of her sales and operational staff.


Additionally, Laura spent two years with Communispond Inc., working with executives on their stand up presentation skills.


Laura’s graduate and undergraduate work are in the fields of education, psychology, marketing and business administration. 


She is the co-author of the book, “Talk your way to the Top”, published by 

McGraw-Hill in 2003. It has since been translated into five languages.


Laura’s interests outside work include her husband and two college age children, running, skiing, gardening, reading, and writing poetry.

Candace Cleland

Candace Cleland is a learning and leadership development consultant who has spent the last 20 years of her professional life assisting individuals and organizations improve their performance and effectiveness. She began her career as a Sales Representative then transitioned to Sales Training, then Leadership and Organizational development.  Her background includes broad consulting and corporate experience with a record of success in addressing visible, high impact issues for the organizations she supports.


Ms. Cleland has managed Sales Training and Leadership Development and Learning functions for a number of Fortune 100 companies.  She has proven adept at identifying and developing the human capacity necessary to support key business initiatives and deliver required results. 


As a consultant to Fortune 200 clients she has designed, delivered and lead programs and initiatives in the broad topic areas of Sales, Sales Management, Leadership, Interpersonal Communications, Customer Service, Career and Team Development.  Ms. Cleland also provides Executive Coaching to a number of leaders in a wide variety of industries.


Ms. Cleland received her bachelor’s degree from University of Tennessee and has completed more than fifty education and skill development programs.  She has been certified to train seven different advanced programs as well as to deliver SkillScope and The Big Five feedback.

Andrew Barer

Andrew is an accomplished sales and marketing executive, entrepreneur, educator and public speaker. 

In the fall of 1999, he raised $2.5 million in seed capital and launched PPINetwork.com, a company providing web-based Customer Relationship Management services for members of the $15 Billion promotional products industry. Prior to this, Andrew founded Argus Group, a management consulting company focused on guiding executives and their companies in their efforts to embrace opportunities created by the Internet.


Andrew has played a significant sales management role for two companies.  As the Northeast Sales Manager for Champion Athletic, he managed a staff of 20 sales representatives and $30 million in sales.  As the Vice President of Sales for Take the Lead, Inc., an early-stage maker of environmentally friendly apparel, he established accounts with prominent national retailers, growing sales from $33K to $1.4 million in two years.  Today Andrew serves as Director of Development and Communications for Pacific House, Inc. in Stamford, Ct.  


Andrew has a Masters degree in Psychology from the Chicago School of Professional Psychology and is a certified Executive Coach and Master Life Coach.  He graduated from Wesleyan University in Middletown, CT with a BA in both Psychology and American History. He is the only student in the history of the University to be twice awarded the prestigious Limbach Prize given annually to the student “providing the most outstanding service to the Middletown Community.”


Andrew is an avid outdoorsman and is a member of the Wilderness Education Association (WEA).  He lives in Easton CT. with his wife and three children.


David Michelson

For the past 25 years, David Michelson has created and conducted seminars on topics including consultative selling and service, personal leadership, and management development. David has provided programs for organizations such as Marriott Corporation, Polaroid, Coopers & Lybrand, and many other Fortune 500 corporations. He has adapted seminars to international cultures within North America and South America, the Middle East, and the Pacific Rim.

Prior to initiating DTM Associates (1991), David worked for four years with Consultative Resources Corporation (CRC), a consulting firm specializing in customized sales and management training programs. At CRC, he developed and maintained client relationships, designed and delivered programs, conducted train-the trainer workshops, and facilitated strategic planning meetings.

Preceding CRC, he spent five years with Great Western Bank performing various training and organization development functions to assist in cultivating a sales and service culture within the bank. In addition, he created and supervised an internal training consulting group to address specific departmental training needs.


David holds a M.S. in Human Resource Development from American University and a B.S. in Business from Dickinson College.

Susan Strenkoski

Susan is a creative, solutions oriented art director with a track record of developing award winning marketing materials, resulting in increased market share and improved client retention rates. Her strengths expand beyond design, to effective client relationship management, strategic thinking, creative direction as well as consistent output of powerful business communications.


Susan is a creative problem-solver with the experience to identify opportunities, develop marketing strategies and deliver advertising campaigns across multiple platforms. She has designed multi-level campaigns that have run on national and international levels, for a wide variety of high-profile B2B and B2C accounts. Her industry experience is broad and  includes financial services, education, retail, industrial, medical, pharmaceutical, avionics and construction. 

Susan is actively engaged in community revitalization efforts in her hometown of Western New York. She is using her design and marketing experience to lead the fundraising efforts of a local non-profit that was established to create an off-leash dog park, as well as maintain the park grounds and historical buildings on the park site.

Don Heymann

Don Heymann has a wealth of experience as a independent writer and strategist in all facets of corporate and marketing communications. Comfortable in a range of media, he is known for writing clear, persuasive content and developing dynamic creative concepts and targeted sales and marketing messages. 


Don began his career as an independent consultant in 1985. Assignments have ranged from comprehensive communications programs to individual projects including executive and sales presentations and speeches, corporate and marketing literature, web site and social media content, videos, ghost-written articles, blogs and white papers, annual and sustainability reports, press materials, and event communications.


Clients have included Citibank, Pfizer, PepsiCo, GE, Merck, IBM, and Unilever, as well as such leading non-profit organizations as The Nature Conservancy, The New York Academy of Sciences, the Rockefeller Bros. Fund, the Annie E. Casey Foundation, and Save the Children.  


Don also puts his experience to use in the classroom as an adjunct instructor at NYU’s School of Professional Studies where he teaches a course in strategic and marketing communications writing. In addition, he conducts writing and messaging workshops for business and non-profit groups.