rvugt: As a manager you know that LLs are a pain in the ass. If you have 6 missing picks and you don't know if those 6 picks are with the OOP poster or not.. it's almost impossible to proceed. Especially with the rules now that if two players against each other don't send, the draw shuffles to give the #1 seed a bye. It's something a manager shouldn't have to worry about (picks floating around in space).
AdeyC also makes a good point. What if a person who is not a manager wants to help out and post the OOP in a dire situation. He should then not be receiving picks.
Forgot about the fact that the draw can change now if a lot of LL should get in!