Mark Wilson was a teacher and could offer strategies and tips on different aspects of the game. I'm not so sure that a different coach is going to make any difference.
Most who have been a member on this forum for any length of time know how I feel about professional pool and its players. With that said, even though I respect them tremendously, I feel it is something in the players themselves that is disconnected, which needs to be fixed. Vincent Lombardi wouldn't be able to fix Team USA at this juncture.
With that said, what traits would be good ones for a Team USA coach to have?
Definitely teaching, recognizing faults, but what else?