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Kiper: What happens at the workout

Gary A. Vasquez/US Presswire

Behind the Big Board accompanies the release of every Mel Kiper Jr. Big Board leading up to the 2010 NFL draft, explaining why players moved up and down the rankings and other hot topics associated with the Board.

When the regular season ends, there's a notion that nothing will really change on the Board until guys show up in Indy, squeeze into the spandex and run, throw, lift, and hopefully -- unlike Andre Smith earlier this year -- don't leave early. So the debate now is: Which players are vulnerable to the workout process, and which aren't?

I'm going to go through some key names on the Big Board that could rise, fall, or shouldn't move at all based on what they do from here right on up to April.