The reason I'm banging my drum for an OT is that I assume they can also play Guard. I don't know that both Guards we drafted are bonified upgrades and starters. To me, upgrading the line means possibly a whole new line. If we get an OT in the first two rounds, I expect them to be good enough to start and push one of our G or OT's out of a job.
We need to look at it in a cut-throat manner because Josh and the run game needs to be much better supported than it has been. I'd risk having too much quality on the line, because it makes our current RB, QB, TE, and WR's all better immediately. That's a huge gain for one player selected on top of our FA gains