Campbell played LT in HS it was always his natural position.
His main issue was technique more than anything, when he understood his assignments & knew exactly what to do he was actually a pretty good Tackle. He's probably the most naturally strong OT we have, he has a nasty streak in him & can finish blocks, he also moves well at 6'5 300lbs. He's a Red Soph this season which means he's had 3 years to develop & maturate, I think he can do a good enough job to not be terrible at LT.
Herbert is the scariest, he hasn't even shown a flash of skill or talent to be a starter. At least Campbell had moments where he played well, Herbert has only been awful since he's step foot on campus in the few instances where he's been healthy enough to actually play.
Still think we're missing an opportunity to go get a Grad transfer OT with having 1 more scholly left.