Craig Kardon is a Grand Slam winning coach with lifelong experience in competitive tennis which includes participation, coaching, commentating, administration, marketing and promotions. He has unparalleled involvement in developing, building and maintaining relationships with top players, coaches, and tennis communities all over the world. Craig has worked cross functionally with management companies and tennis organizations to enhance player development and marketing opportunities. 

Check out who he has coached and his accomplishments here  http://www.craigkardon.com/About-Craig/Professional-Tennis-Coach,-ATP-World-Tour-WTA

And if you don't have enough time to do that, just know that he coached Martina Navratilova to 1990 Wimbledon title and has been helping players since.  

You want this session.