I say that when you know that your LT of the future is Morgan, and he's by all accounts ready to step in and start, you play him. Play the guys who will be here. Let them grow together and develop as an OL. Don't waste a year of that potential development on a guy with one foot out the door.

Even Clifton-Wahle-Flanagan-Rivera-Tauscher didn't become "that line" until they'd had at least a year or two of playing together...