Why should trades be approved for teams that have chosen to go into the re-allocation drafts? In the case where the manager no longer wants the team, what is to stop him from "helping out" another manager? And if you do intend to keep your team, and are not recieving beaucoup draft choices, what is the purpose of man for man trades?
While I think the concept is great and should make for stronger leagues, there have to be some controls that can prevent obvious abuses. Perhaps an earlier annoucement date, i.e., the end of the season before trades are announced. Teams that have opted for the dradt would have their roster frozen.