I have no problem with people including McD, but would you also include Larry Bird on any Mount Rushmore for CBB other than his '79 rivalry with Magic? Of course, it brought CBB into the mainstream but that's a TV accomplishment but as a NCAA solo effort?.
I had to double check on Kemba for a similar reason. Does his one epic season make him worthy. I say yes because it was that epic. The absolute best of the one year runs. Better than Curry, Nelson, Jimmer and any of the others who carried there teams. IMO, you either need to be a dominant player for multiple seasons or accomplish something so great it demands inclusion. Carmelo is close but I can't get myself to abide putting a one and done player in the top 4, even if they were a No 1. lottery pick who won a championship (AD is out). Battier is close too, but he was the face more than the top player. Horford is close, but Noah was the face and just as good over the two title seasons. (This doesn't have to make complete sense.) Shabazz is also close but I feel it'd be too homerish to include 2 UConn players and Kemba is above Bazz in NCAA history despite 14 being every bit a feat that 11 was and Bazz 2>1. The Kemba legend is still the #1 MBB story since 2000.
I can't think of too many other candidates. Guys who had great numbers but the causal fan can't remember don't belong, either.