I still can't believe it's much of a possibility, but if we get Kempt back, that's a great thing. I'm sure he'd have the leg up on the starting job, but one of the very clear things from Campbell & staff is that everyone competes for their job every week, let alone every year. So, while Kempt would presumably slot in at 1st string, Zeb would get the chance to beat him out, just like every other spot on the team.
Zeb has a much higher upside but being so inexperienced has had a lower floor. Remember, he missed his frosh year due to ACL injury, so he'll have a lot of growth this spring/offseason. Whomever starts, it'll be a good thing, and we'll have an excellent back-up.