I've watched a TON of Russell and Quinn. Quinn is far and away the most NFL-ready talent at QB. In fact, I think he's going to be very very good at the NFL level.
Russell reminds me most of Byron Leftwich, big guy that isn't real mobile, has a strong arm and can throw accurately most of the time.
However, Russell just doesn't seem like he has the upside to be an elite QB. Never got the impression that he is consistent enough. Now, I wouldn't mind having him in the later rounds as a backup with potential grooming, but he is probably deserving of a second round pick, and will probably go in the first, to someone who really needs a QB. Just can't see Russell having Vince Young type success in the NFL because VY's success has been largely due to his dynamic running ability which has made up for some of his growing pains in the passing game. Russell doesn't have that. He's the size of an offensive lineman.
As for Jarrett, I would LOVE to get this guy. I really think he will end up being deadly in the pros....he is more talented than Plax...and I think less 'tude. I like our stable of WRs, but can't see any of the young ones being more than a #2 WR. Also, there aren't going to be any OL outside of the top 10 picks worth a mid to late first round pick...JMO at this point looking at how the draft should shape up
Still left to accomplish:
sign OT Winston or G Moore