Fox Sports Adam Caplan points out an easy choice for the Green Bay Packers after the end of the lockout. Keep RB Ryan Grant. He has a roster bonus of $1 million due "on the 15th day of the new league year." There's some risk here, but having him return as the 2011 starter is the best choice.
After re-watching the Super Bowl again recently, it was clear (again) that RB James Starks just isn't ready as a runner and blocker. The talent is there, but Mike McCarthy called him out for needing to work on the details as recently as mid-November. There is some uncertainty with Grant since he's returning from a major ankle injury, and is only one year away from free agency. But he's certainly had the trust of the coaches, and performed at a high level, in the past.
The alternatives have some risk too. Would it really be better to go after a veteran like RB Clinton Portis instead of Grant? Aren't any veterans who become available a risk too? Could they really count on another rookie from this April's draft to make up his production?