They won't skip a beat. Especially because Grimes is also in charge of hiring. Whoever BYU has at OL coach for the foreseeable future will just be like an apprentice, learning under Grimes. We've already got the master, who he chooses as his protege is just something we can trust. Honestly, and nothing against Pugh because he was awesome, we didn't lose anything at OL. We still have Grimes and everything above falls in with it.