Domer perspective.
Prosise, he's still kind of raw at RB. He was recruited as a safety, switched to WR for a couple of years then RB last spring after he impressed on some jet sweeps in 2014. He has deceptive speed, a good second gear and while he doesn't have Murray's power, he keeps his legs moving in traffic. He had a couple of goal to go runs that were impressive as hell as he kept bouncing off defenders and driving his legs, runs that I thought had no chance of ending in a score. He's not great running between the tackles though and broke down in the second half of the season. He was recruited for defense and there's a difference between being a safety that makes the occasional hit, a WR that takes the occasional hit and a RB that is taking hits in the trenches all the time. I actually think he's better suited as a slot receiver. He's got the size to be a #2 outside receiver but he's never played there as far as I know.
Another Domer Dallas has evidently kicked the tires on that may be worth a look later on is Romeo Okwara. He has good size for a weak side DE and good athleticism. One reason I'm on the fence about him is he's limited when it comes to moves/technique. He played WDE in HS but was moved to OLB in a 3-4 for two years before moving back to DE for his junior and senior year in a complicated 4-3 scheme where he dropped into coverage a lot so it's hard to gauge him. If he were able to learn some new technique, he *could* be a steal.
I wouldn't hate taking a flyer on Prosise in the 4th round and certainly not the 5th. Same goes for Okwara in the 5th and I definitely wouldn't mind picking him up in the 6th.
Nick Martin is good but not as good as his brother Zack. I think he projects best at center and we already have Travis Frederick. I wouldn't be surprised to see him picked in the 3rd, maaaaybe the 2nd.