If you watch McCoil, I can't guarantee you will be impressed. I don't know how much his effort has improved, and he still needs to work on his route recognition skills, but he's like Ed Reed with the ball in the air and has Kenny Phillips' body.
It's much easier to get game film on Miles than you would expect. For some inexplicable reason, Fox College Sports Atlantic (FCSA) has a TV deal with California PA (who knew?), and it's very easy to see their games your cable includes the Digital Sports Package. All of their games are nationally broadcasted.
I haven't closely paid attention to Stafford (two games of film from last year), but he looked pretty good from what I saw.
I found one video of McCoil, and I haven't watched it yet, but it's from 2011. It's last season's bowl game, but I still have a bias for 2012 tape.
Dexter MCcoil vs BYU 2011 - YouTube
Do you know of any videos of McCoil or Miles from 2012, and do you know if either of them are captains?
Stafford is a good player, but I've only scouted him once this season which isn't an adequate sample size. He's a good all around safety, but he need to improve the lines he takes to the ball carrier. I like him more than TJ McDonald, but not quite as much as Kenny Vaccaro. He is a captain and emotional leader which is something Belichick looks for, as well as a good special teams player.
Regarding your mock, I don't know much about those specific players other than McDonald and Mellette, but I'd like to see a lot more offensive line. Guard is arguably the biggest need, and center and tackle are up there too.
Love this guy. Electric player in the Percy Harvin mold. Although I'd feel guilty taking a player like this in the mid 2nd with so many other needs I can't help but wonder of the ways he could be used. Simply put, the stupid negative kick returner threads would finally be laid to rest immediately. Downright playmaker who can line up as a wr/rb/kr/pr. So much value.
Receiver has always been my favorite position to scout, mostly because I'm pretty good at it. I called Antonio Brown the most underrated prospect of the 2010 draft, and I was the one guy crazy enough to say he was worthy of a late first round pick. Tavon Austin is the only player I have ever seen who rivals Brown in terms of quickness and change of direction skills. I love it. The senior wide receiver class sucks, but I have no objections with Austin being a late second rounder.
One safety I forgot to mention: Matt Elam may be 5'10, 205lbs, but he tackles like he is 6'4, 240lbs. Think T.J. Ward with more speed.
He reminds me a of DeSean Jackson, but without the attitude. Their bodies and athleticism are similar, and they're both very difficult to cover one on one. I'd love to see him rocking the Elvis, but I always worry about the receivers of the best QB in CFB and vice versa. Is Smith making them look even better than they are? Is it the other way around? Is the team that takes Smith in the top 3 going to reach for one or both of Bailey and Austin? It's just something I think about.
Elam is definitely a guy I need to check out.