Lewis:
Passing: 721-1179, 9203 yds. 74 td.-18 int.,
Rushing: 286, 1088 yds., 15 td.
2 Conference Championships
4 Bowl Appearances
3 Bowl Wins
Delhomme:
Passing: 655-1246, 9216 yds. 64 td. - 57 int.,
Rushing: 230, -338 yds., 6td.
Mitchell:
Passing: 385-843, 5447 yds., 23 td. - 42 int.
Rushing: 678, 3335 yds. 47tds.
(Factoring in Bowl and post-season appearances)
I think the guy on the top has done more than enough to warrant a number retirement.