I actually think Cooper will end up at safety next season. One of our bigger problems is that we seem to be undersize across the board, and a couple tweeks into next season's lineup and we are a much larger team. The problem is that if Cooper doesn't switch to safety, he might not be starting next season. I imagine that Beal will be our MLB next season and he will have Tinsley and Rallis Outside.
For me, it's not so much that I think Cooper is a terrible linebacker, I just think he is athletic enough to play in even more space and could do a decent job at SS (we are also much deeper at LB, especially next season).