UT has depth on the OL or they wouldn't have survived so far. No one has depth so great that injuries can't push through it. Considering OU has a pretty good DL, I thought Johnson showed some promise. He probably earned more looks from the staff. I truly appreciate Davis... but the guy needs to be strictly a back up who spells the starters. He's not athletic enough to stand up to top tier DLs.
The Vols have other talented players in development. You would rather take your time but they might have to get someone like Warren ready to go as the primary back up if Heard or someone else isn't available over the long haul.
Over the last 20 years, we've seen times when the Vols had 5 or 6 credible OLs at best and behind them were guys who shouldn't have been on the roster. This isn't like that.