Just out of curiosity, how will he get better? Simply by trying things and seeing if they succeed or fail? By watching other guys? I'm not really psyched about having the head coach have to learn how to be good while coaching our team. Yes, I expect everyone learns from experience, but I'd prefer he already be very good to start with and then hone his craft.
This is really the issue, right? That even as he is improving, so is everyone else. And just as our players are improving, so are everyone else's. And many of the opposing coaches are starting out ahead of Groce in terms of experience and proven player development and team success.
I know, you need to take chances on new and young coaches sometimes, and hope you find the diamond. And I know someone is thinking "Coach K!" right now as the poster child for starting out slowly and then becoming great, but he is not the rule. Far more often, by about year 4 (or 8) of a head coaching career, the trajectory for a coach is starting to become clear. I just don't understand the thinking of "Well, our players will improve" and "our coach will improve." He (and they) will have to improve MORE and FASTER than everyone else who is also really trying hard to improve. Why should we expect that our coach(es) and players, in the current situation, will do that?