Answer 1b is the fact that Mississippi is producing some absolute freaks for 2015. More than usual. I think both schools have been scouting those guys more so than a lot of 2014 prospects for quite a while now.
I'm ok with spending this class on depth. Get some quality depth and future junior/senior starters out of this class, get your start first year starters the year after. Oline is just now starting to fix itself. Every other year we need to grab a line class like this one.