for years I thought Cov was indeed held back during RMK's last season (and CMD let Cov out of the doghouse to play), but looking back now, we had 2 very worthy senior guards (Guyton and M Lewis) on that squad who played a lot of minutes, plus Fife, so freshman Cov was never going to see the court much that season.
Collier was a 7 footer who wanted to play on the perimeter. Charlie Miller was a really nice guy but was not the next coming of Calbert.
My vote goes to Andre Patterson. For the last month of his Senior year, he was a 20/10 guy and an all american. The rest of his career (sans the Duke NYC game where he went ape shit), he was soft and just didn't play with a chip on his shoulder. From what I've read, he really drove RMK nuts because RMK could see the potential, but it just was not translating to results in the games.
Honorable mention: Ivan Renko