I don't think he will play any DB for us, but I could see him as a boost to our pass rush. Right now we are blitzing Bighill and Gauthier a lot, but Gauthier esspecially is a very poor pass rusher. I'd like to see someone with a little more athleticism in that position on passing downs, and I think Cooper may have that (based on the limited youtube videos I've found on him...)
Yah, I think you might be right, he seems to be super athletic and quick from the videos I've watched. They may insert him as a 4th LB with a 3 man front to exclusively chase QB's for now, making up for Hansen's loss.