Look for the Cowboys to draft the VERY underrated Chris Perry.
Position: Running Back
40-Yard Dash: 4.55
Positives: Chris Perry is a shifty runner, but he can also run with power. He has good size, quickness, and speed, and he picks up yardage after contact. He has good vision and instincts for finding the hole. He possesses good cut-back ability, catches the ball well in the flat, and is a solid blocker. He's tough in short-yardage situations.
Negatives: Perry is one of the most complete backs in the draft, but he does not have breakaway speed. There are also concerns that because he has played behind very good lines his entire college career, he might not be quite as good as he has looked at Michigan.
Projection: He is probably not a franchise back, but he is a solid football player. He will most likely be a second-round selection, but he could slip into the end of the first.
They said the same thing about Emmitt Smith when he came out, especially the part about not enough break away speed or that he could not be a franchise back. The vision they talk about was the key to Emmitt's success in the NFL. Well, and the fact Emmitt played behind one of the most dominant lines in history.
If Perry is not available, look for the Cowboys to draft an OL, possibly Shawn Andrews, OT, Arkansas, unless Kenechi Udeze, DE, U.S.C. drops (he has been dropping lately).