Putting him on the bench is not going to happen. Maybe if WMB hits 2 HRs a game until Youks comes back, but barring WMB becoming Pujols or Miggy Cabrera in the next 10 days, Youk will be playing when he returns. You are just not being realistic. On the trade front, they would get very little for Youk. Plus, they would have to eat salary. It is not going to happen. Two choices: WMB plays the OF or he goes to the minors. Take your pick. If you want to keep him at 3B, you had better hope that Youk's back is a chronic problem.