Gray has proven that he does have breakaway speed after clocking impressive times at the US Army Junior Combine and at the Michigan Summer camp. He also has improved as a blocker. He's a great outside runner with good feet, if he can run with a little more authority between the tackles, he'll be a fine college back.
Winston has the body of a college junior right now and he's running sub 4.4-s pretty consistently. What's best about him is that he runs with attitude and is also a pretty good receiver out of the backfield. Once an unknown, he appears to be on his way to a major college scholarship.
Here's a player who found the perfect situation. Williams is tailor made for the spread system Brian Kelly will be implementing at Cincinnati. He is very quick, elusive and can catch the ball out of the backfield, plus he has already played in the system in high school, so his college prospects look pretty good!
There is good reason why schools from the Pac-10, to the SEC to the Big Ten are recruiting Ingram. He is a versatile back with quickness, speed and receiving skills.
Lark had an excellent sophomore year, but injuries and some work at quarterback hampered his season last year. He should be back to primarily being a halfback this year, although he'll still see time under center. He has good size, instincts and could be a good college back.
Harper hasn't gotten too much attention just yet, but he may be the sleeper back in the state. He has quickness and vision. He doesn't have elite breakaway speed, but can break the long run. He'll put up good stats again this year.
He isn't the biggest guy, but Crawford has explosiveness. Once he gets a crease, he hits it and has home run ability.