Does the WWE have a quota of releasing superstars?

I'm with you, it doesn't make much sense, I mean they were just building Cherry up to be on of the top divas on SD! and they just gave Collin a heel push, they could've reformed Jimmy Wang Yang and Shannon Moore and gave them a push, they were one of the top tag teams on SD! for a while, Stevie Richards is a veteran, I'm sure he was a good guy to have backstage in the locker room, for young guys to talk to and such, not to mention he is a decent wrestler. I fell ya, pretty soon they might be releasing main eventers...