For the N-QUINTILLINTH TIME....The coach of USA Basketball has no say in the team that they coach, so no, the idea that "....playing for UConn does give college players an automatic advantage with USA ball." is NOT a reality.
If you want him to step aside, I can respect your opinion. From my standpoint, the last Olympic team seemed to have the most fun while playing the highest level of basketball that I have seen over the past several olympiads, so I don't see any reason for him to step aside. Unless, of course, he thinks that there is someone better to replace him, in which case I think he would step aside and recommend that coach as his replacement.