Make it user-submitted. I'm sure lots of us have great ideas. Have folks vote for it on the Twitter-verse. Give away a few stubs to the winner (or even better, a Brian Roberts Milestone card).
My idea? EVERYONE GETS THE SAME TEAM. For example, everyone gets Cal Ripken at SS. Don't like his long swing? Too bad. Suck it up. LS Hunter Harvey (Orioles) is everyone's closer.
Just a thought. Tell me below why this is a terrible idea (it's really not). Or put forth your best idea for an Event.
P.S. Full disclosure, as I've bragged about before, I am 1/1 level 5 with Harvey. <<FLEX>>