The answer you are looking for is zero.
Well the statistics from our 4 losses last year sure make it look like he wasn't helping us win. I realize the ISU game had a bunch of fluke fumbles but still that statistics are crazy.
L VT Passing: 11-30 0 TDS, 2 INTS, 136 total yards Rushing; 8 carries 38 net yards
L ISU Passing 20-37 0 TDS, 3 INTS, 248 total yards Rushing: 6 caries 5 net yards
L TT Passing 16-22 0 TDS, 0 INTS, 128 total yards Rushing: 9 carries for 0 net yards
L Texas Passing; 6-19 0 TDS, 3 INTS, 39 total yards Rushing: 6 carries 12 net yards
4 game total: Passing 53-108 0 TDS, 8 INTS, 551 total yards Rushing: 29 carries for 55 net yards
Average stats for Lee when we lost..... Passing: 13.25-27 137.75 total yards 0 TD, 2 INT, Rushing: 7.25 carries for 13 yards
Im not say Lee is the only reason we lost but he was a major part of it.