Fly,
Right now, you're losing this battle with the old coach. He owns you. No matter what you accomplish, he will continue to own you as long as you let his opinions of you affect how you play this game. You have proved him wrong, but still let him get under your skin. This could ruin your career if you don't get a handle on it. Go out there, do your job and smile in the knowledge that this SOB has no control over you or your emotions. Until you can get to that place, this guy still has a hold on you. Good luck.