If your league is a 5x5 league, you will need more stolen bases, more saves and better pitching. Outside of Dice K, your pitching isn't looking that great. For some value starting pitching guys that may not have been drafted, check Boof Bonser, Randy Wolf and maybe even Homer Bailey. You also need saves, try Octaviel Dotel in KC, Jorge Julio in TB, and maybe Solomon Torres in Pittsburgh. For middle relievers that might help you, try Phil Neshek from Minnesota.
You need steals, but there are a few guys out there you might be able to pick up. Willy Taveras from Col, Chris Duffy from Pittsburgh and maybe Dave Roberts. Maybe some pop in your lineup, Jonny Gomes from TB, Alex Gordon from KC and Jim Edmonds from STL. Granted these guys were probably not drafted, they could be valuable once the season starts. As far as guys to drop, I would drop Jose Castillo, Jack Wilson, Juan Rivera and maybe even Mike Gonzalez.
With a couple of those additions, I think you will have a more balanced team.