You can probably do better than Cromartie unless your in a real large league. Definitley trade Cromartie for Chung if you can, from what I've read on Chung is that he's no one week wonder, he'll be productive all year long, could end up as a Top 5-10 DB.
btw, if your league rewards points for individual return yardage, get Leonhard NYJ, Hobbs, D Manning, or T Williams on GB. Actually, Leonhard would be better to have the Cromartie regardless, but Chung is better than them all.
Three 2009 Money Leagues.
Two 1st place, one 2nd place finish.