One of the reporters at Big 12 media day last October took a poll of "coach you most want to play for other than your own" amongst the players in attendance - and Frank Martin won by an overwhelming margin. They felt he would best push them to make them the best player they could be.
He's obviously not for every kid, but the players that do play for him love him. Also, don't mistake his gameday persona for his everyday personality. By all accounts, his intensity drops (just a bit) for practices and film sessions where he takes more of a teaching approach.
, in the Big 12, behind closed doors, easily the least popular coach in this conference is Scott Drew.