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CornerStone Services

Contact Info:

P.O. Box 764087
Dallas, TX 75376
Fax: 972.274.2884

David Cottrell

David Cottrell, President and CEO of CornerStone Leadership Institute, is an internationally-known leadership consultant, educator, and speaker. His business experience includes senior management positions with Xerox and FedEx. He also led the successful turn-around of a chapter eleven company before founding CornerStone.

David's 25-plus years of professional experience are reflected in over 20 highly acclaimed books and his reputation as a premier public speaker. David has been a featured expert on public television and has presented his leadership message to over 250,000 managers worldwide.

1975 Graduate of the University of Arkansas

1975-1984 - Xerox Corporation - Positions included sales representative, sales manager and sales planning manager.

1984- 1993 - FedEx Corporation - Positions included District Manager and Regional Manager

1993-1996 - National Spirit Group - Executive Vice President

1996 - Founded CornerStone Leadership

Author or Co-Author of:

  • Birdies, Pars & Bogeys: Leadership Lessons from the Links
  • Leadership ... Biblically Speaking
  • Listen Up, Leader
  • Listen Up, Sales and Customer Service
  • Listen Up, Teacher
  • The Managers Coaching Handbook
  • The Managers Communication Handbook
  • Memos to Managers
  • 136 Effective Presentation Tips
  • 175 Ways to Get More Done in Less Time
  • Monday Morning Leadership
  • Monday Morning Customer Service
  • Leadership Courage
  • Becoming the Obvious Choice
  • Management Insights
  • The Leadership Secrets of Santa Claus
  • Monday Morning Mentoring
  • Monday Morning Choices
  • The Nature of Excellence
  • Leadership Energy
  • 12 Choices ... That Lead to Your Success

Monday Morning Leadership

Listen Up, Leader!

The Manager's Coaching Handbook

The Manager's Communication Handbook

Monday Morning Mentoring

David Cottrell's Collection of Favorite Quotations

Becoming the Obvious Choice

Escape from Management Land

Monday Morning Choices

The Nature of Excellence Premier Edition Gift Book

The Manager's Conflict Resolution Handbook

The Nature of Excellence (6 x 6) Classic Edition

The Magic Question (Hardcover)

Second Quarter ... Get the Most Out of Life's Toughest Times

The First Two Rules of Leadership: Don't Be Stupid. Don't Be a Jerk. (Hardcover)

Grace Upon Grace ... My Story (Hardcover)

Grace Upon Grace ... My Story (Paperback)

Destination: Success!

Ilayne Geller

Ilayne J. Geller, Ph.D., has over 23 years of experience in organizational and management development. She has trained thousands of people on successful conflict resolution within organizations in a variety of industries. Ilayne earned her M. A. and Ph. D. from New York University. She currently resides in Irving, Tx.

The Manager's Conflict Resolution Handbook

Ken Carnes

Ken is an accomplished speaker, author and consultant and a recognized influencer in the fields of leadership, coaching and sales performance. Ken has over twenty years of domestic and international sales, coaching, and executive leadership experience. He has successfully led the sales organizations for two Fortune 500 companies and has held senior executive positions in three top professional services organizations. Ken is currently a Managing Principal with Capital H Group in The Woodlands, Texas and the cofounder of Proseris Services.

Kenís success has always been built on his lead-by-example philosophy that gains the trust, respect, and commitment to excellence of those around him. Ken has penned several widely read articles and white papers on the topics of coaching, high-performance selling and leadership.  He is the co-author with David Cottrell of the popular book Management Insights.

Escape from Management Land

Lee J. Colan

Lee J. Colan, Ph.D. is a leadership expert, advisor and an energizing speaker. He is passionate about delivering simple, powerful tools that leaders can put to work right away. Colan's cut-through-the-clutter insights appear regularly in a wide range of print and on-line media. Lee has written 13 rapid-read books designed for an information-rich, time-poor world. Busy leaders can finish them quickly and immediately take action.

Colan has also built a track record of successfully managing the challenges of rapid organizational change. Lee possesses an in-depth understanding of business, people and organizations. Lee's training enables him to see through the complexities of today's challenges and communicate simple solutions that leaders can apply in a real world.

Virtually every Fortune 500 company has experienced the positive impact of Lee's practical insights and approach, as have many smaller companies:

Amedisys American Heart Association - National Center AmeriSource Bergen Specialty Group AT&T Wireless Services Crosstex Energy Services CVS/Pharmacy Dollar Tree Stores Fossil Foxworth-Galbraith Lumber Co. International Paper Jiffy Lube Association of Franchisees Jo Ann Stores Johnson Controls KPMG Pegasus Solutions Safety-Kleen Senior Living Properties Pier 1 Imports Texas Instruments The Venetian Resort, Hotel & Casino TRANE Voluntary Hospitals of America (VHA) Yum! Brands

Orchestrating Attitude

107 Ways to Stick to It

7 Moments ... That Define Excellent Leaders

The Nature of Excellence Premier Edition Gift Book

Passionate Performance

Sticking to It: The Art of Adherence

Engaging Minds and Hearts

The 5 Coaching Habits of Excellent Leaders

Getting the BEST from Yourself and Others

The Nature of Excellence (6 x 6) Classic Edition

Leadership Matters

Stephen Graves

Don't Lead Half-Dressed

Topper Long

Topper Long s business life began at the age of 11 when he started mowing neighbors lawns for a few dollars. His formal business career ended 46 years later when he retired as CEO of Textron Engine Marine and Land Systems, a $400 million collection of three companies, two of which he was also President. During those years, he earned a BS degree in Engineering and a MS degree in Executive Management. He served as an officer in the U.S. Army and worked 17 years in government service and 17 years in private industry.

Topper and his wife, Carole, divide their time between homes in Gallatin, Tennessee, and Valle Crucis, North Carolina. They have two daughters, two sons-in-law and four grandchildren, all who have been some of Topper s best mentors. It was during his 47 years of traveling though the jungles of government, corporate America and many other segments of life that Topper, a wide-eyed gullible traveler, learned the lessons in this book. Gullible may be contacted at and is available for presentations, seminars or counsulting regarding his travels in the business jungle.

Gullible's Travels