On top of the technical issues NFL scouts have with Tim Tebow as a prospective pro quarterback, there’s also the standard next-level complaint about “the system” — specifically, among other things, that Tebow spent the entirety of his college career at Florida taking snaps from the shotgun, never from under center, even in short-yardage situations. That seemingly minor qualm opens up an entirely new avenue of doubts about his ability to adjust to basic mechanics like footwork and turning his back to the defense, fundamentals most quarterbacks have converted to second nature long before they show up for NFL auditions (or, in most cases, before they ever set foot in an actual college game).