Ok gentlemen. I'm going to come at this from another prospective. In my opinion and we all know what opinions are like. He should skip the bowl game and hire CMAC's speed, strength and agility coach and get ready for the draft. His Clemson highlight film says it all. He can return kickoffs, he can get out in space and run past defenders and just like McCaffrey, he has the strength to run between the tackles. He's also a pretty good pass receiver out of the backfield and can line up in the slot as well. I looked up Shipley's height and weight. 5'11, 209 lbs. exactly the same size as McCaffrey.
The only thing he doesn't possess that CMAC does is the same lateral quickness, but who else does? McCaffrey is the best RB in the NFL, one of the best ever IMO. He, Shipley can get better there, lateral quickness, with the proper training. One more year of college ball is not going to make him any better and he could get injured, again. I know it's a gamble, but waiting until next year will not change anything. He's still white and no matter how well he performs, he has a tremendous uphill battle.
He also needs to forget the heavy weight training with his legs and work solely on speed, balance and lateral quickness. Get that 40 time below 4.5, and shuttle down to 3.9-4.0 range. He should get a copy of McCaffrey's NFL combine workout and study it. It's flawless. If nothing else, it should motivate him to be flawless at the combine.
He can do it if he focuses and works his @$$ off. He's a tough young man and a tremendous athlete.
I'm not saying he can be another CMAC, but again who is. He can definitely make an NFL team and eventually become a starter. Right now, he has more ability than half of the NFL RB's currently in the league.
BTW, he is currently projected to go in the 5th round.