Well we dont know yet who we will have and who we wont. But I definitely get and agree with your point about getting our best defenders on the field. I would rather have AJ Klein and Dodson (or spector, or williams) than Rapp playing LB. And if we DID shift a safety down to LB/hybrid I would just imagine it would be the same guy we have been asking to do that for the majority of the season than swap Rapp/Poyer roles...
So what I am saying is, IF we were to use that look in more of our core part of our base D, then treat it like our dime package and have rapp play safety and poyer play in the box, like both have been doing.