The old-school, ball-control, clock-eating, methodical-drive offense will only succeed in today's atmosphere with a very good red-zone attack. Owning the time of possession to only score field goals is almost certain doom if your well-rested and stingy defense gets beaten for a couple of TDs.
That being said, I'm perfectly okay with Loeffler's offense being installed. He and Grimes are aware of the lack of red-zone production and are recruiting to address it. Having two healthy starting TEs will certainly help as well. I fully expect the passing game to take a hit next year regardless of who's under center, but the running game should show significant improvement and this will carry over to red-zone production.