Please consider:
1) Skill & ability at Pitt, not in the NFL
2) Skill & ability over production, since so much of production can be tied to the rest of the team (see also: Curtis Martin)
3) How long each was a good-to-great RB, not simply their peak (ex: Conner had 1 amazing season, 1 decent, and 1 as a good platoon -- similarly I left Ray Graham out since he never had a great season)
1) Skill & ability at Pitt, not in the NFL
2) Skill & ability over production, since so much of production can be tied to the rest of the team (see also: Curtis Martin)
3) How long each was a good-to-great RB, not simply their peak (ex: Conner had 1 amazing season, 1 decent, and 1 as a good platoon -- similarly I left Ray Graham out since he never had a great season)