I have no problem with a 10-man rotation, if the team has 10 players who can help the club win. There's no magic number of players that is "right" or "wrong." Some teams win with a short rotation; some teams win playing a lot of guys. I was at a HS game recently, and one team played their starting 5 the entire game - 1 sub came in for the last minute of the game, only because a starter fouled out. Yes, that's an extreme example, but that team is playing good ball right now, so it's working for them.
I think that knowing when to substitute, and who (or whom) to substitute is one of the aspects of coaching that doesn't get talked about enough. I realize that Tubby's habit of running in groups of players bothers some people. I tend to subscribe to the theory that "it's not who starts, it's who finishes the game." Watch who's on the court when the game is on the line - that tells you who the coach trusts in crunch time. For the Gophs, I personally want to see A. Hollins, J. Coleman, J. Welch, R. Williams and E. Eliason on the floor when it matters. (of course, if it was up to me, RS3 would be watching the game from the stands next to daddy.)