Like the other reviewers, I don't think your 3B is a big concern. For a 12 team league you have some nice pics with a really good infield. 2B and C are always positions of concern, but at least you've got one of these nailed solid. Hudson's not bad, but other 2nd tier second basemen I'd take over him are: Kinsler, Catillo, & Weeks.
I agree that you'd be much better served with 4 really good outfielders than your current 5. Because my Spidy-sense tells me Young is on the verge of something big, I'd definately hang onto him. If you could swap both Granderson and Bradley for someone like a Carlos Lee, Torii Hunter, or Adam Dunn - I'd do it.
If I could propose your ideal trade, it would be:
Hudson, Granderson, & Bradley for: (Kinsler, Castillo, Weeks, or Durham) plus (Carlos Lee, Hunter, A. Jones, or Dunn) plus a 3rd tier SP like Francis, Duke, or Il Duque
Just my opinion - hope it helps.
Brew Crew fan in Colorado