In late February, Big Show threw Dolph Ziggler onto Wade Barrett and R-Truth outside the ring near the announce table.
Barrett was injured, dislocating his left elbow.
Because of that, WWE changed its mind about returning the Money in the Bank match to WrestleMania.
A couple weeks later, they had cemented the idea of a 12-man tag match to unify the GM positions of RAW and SmackDown.
While this was a bad trade for fans and Barrett, it means four more guys (five if you count Barrett's replacement) get a shot at WrestleMania glory.
So who's in now that wouldn't have been otherwise?
We can't know, but we can have fun speculating.