Jones's only problem is size. He's seeing out his fourth year for the Spartans and that can only be to get himself bigger. I imagine he was heavily scouted last year and might have been told he would slip out of the first two rounds on bulk. Pros is a different world to the Big 10.
Cousins, I'm not so sure. I'm assuming Mich St are going to fuck off this dual QB bullshit and start full time with Cousins. A lot of people up there like the kid Maxwell though, so he'll undoubetly get snaps at some point, especially if Cousins is looking to the draft next year. Like I said before, the QB class is fluid at the moment - who comes out when depends on the CBA and any rookie cap. If Cousins comes out after this year, then he won't second round in the next year's draft. No fucking way. There are just too many better QBs potentially going in that draft. I don't really see him as a pro starter, but a lot of organisations will like him for a back-up I would think, especially with his off-field activities. The Spartans do run a pro-style offense though, and he is the right size and has a nice arm. This could be a big season for him. If he steps up and leads them to a good record, then there will be hype around him. I found him incredibly streaky last year though. He'd look ridiculous at times, just fizzing lasers about the place. Then he'd throw an INT (Notre Dame, anyone? He looked great in that last drive and then lost the game). Consistency is what everyone will be looking for.
Nitchman has gone too, so there's an immediate question about that O-line. Cousins has loads of receivers to play with, but I'd worry about the protection he's going to receive. I think Keshawn Martin will have a big season though. Someone has to step into Blair White's shoes, and I think he's the man.