In college? No, its actually awful. For example, last year, 4.1 yards per carry wouldve put you 30th in the conference. Furthermore, the 100th best rusher in the nation last year in terms of yards per carry averaged 5.52 yards per attempt.
Perhaps youre thinking NFL rushing numbers, where 4.1 yards per carry is pretty good/average. But even there, 4.1 yards per attempt landed a player at #20 in yards per attempt in 2017.
No, 4.1 yards per carry in college football is bad, is well below average, and certainly isnt good enough, especially if youre running behind an OL like Clemsons the last 3 years. The only time you get a pass is in the situation that John Kelly was in last year, when he ran behind arguably the worst OL in the country and likely the worst OL in Tennessee football program history.