I've now watched Spiller, Best, Mathews and Gerhart on YouTube. Don't all laugh at once - it's the best I can do. Still need to watch Jonathan Dwyer, Montario Hardesty and Ben Tate.
Although you can only see their best plays, you can still get a feel for what style of player they are and whether or not their skills seem to translate to the NFL.
Spiller is easily the best RB in this draft. He runs slalom-style, weaving between defenders with a twitch of his hips, and he's gone. Follows his blocks well, as you would expect of any top punt returner.
I really liked Best. He has speed for the off-tackle runs to reach the corner quickly. But his biggest feature was how he planted his foot and completely switched his direction. He's got great footwork which helps his stop-start running style no end. He beat a lot of defenders by forcing them to run at an angle to where they thought he would get to (because of his speed), then planting at full speed and cutting back behind them. His acceleration is truly top notch, which is why the foot plant works so well when taking on defenders. He will beat safeties almost every time, especially against a Cover 2 where he can simply run between the two safeties with his speed. I liked his footwork too and he can catch the ball out of the backfield. Question marks probably remain over his running up the middle, although he didn't appear to have a great OL and rescued a lot of busted plays by running through traffic up the hashmarks.
Mathews produced but I didn't feel there was an X-factor like I did with Spiller and Best. He got through some gaps that he had no right to get through, and ran with determination. I'm not sure how well that would translate to the pro level though. Perhaps the upside is what's most lacking - he would be as good behind a bad OL as he would behind a good one. I think he'd get tackled earlier in the NFL than he did in college, where he ducked through a lot of high arm tackles. He reminds me a lot of Adrian Peterson in terms of running style, but without the speed or the sheer power. It seems like the sort of play-style where it works on boys in college, but not against men at the pro level.
I watched Gerhart with awe. He puts his head into every single defender and dares them to bring him down. He has enough speed to run in space without out-pacing NFL defensive backs. But I couldn't draft him, not in a million years. I read Gladwell's article on concussions and there's no way I could send a player out onto the field with that running style. He will get killed in the pros, I'm sure of it. As a defensive co-ordinator I would just line up the old Rodney Harrison up on him and tell him to make his money, it would be barbaric.