do you guys not remember just how much hair he lost while coaching the Knicks and Rox?
Coaching seemed to take a lot out of him and he seems happy to be making bank announcing. Hell, he would have to royally screw up to get canned from broadcasting while in coaching you can easily get fired due to things beyond your control.
If he wanted a gig, I am sure he could get one. He has options. Continue to grow as a broadcast announcer on the biggest stage or go into coaching. Broadcasting is a lot less stressful and maybe he wants less stress in his life. He seems to thoroughly enjoy being on TV.