I think it makes a lot of sense from a commen-sense point of view, but a couple of weeks ago someone posted evidence to refute it. TH's YPC wasn't signifcantly different in "average" down and distance than it was in goal-line and short yardage situations.that is what i'm saying. and i think it's at least fairly accurate.
That may have since changed.
I still think that with 15-20 carries a game multiple situiations will arise in which TH is more able to take advantage of his relatively greater burst than Edge. The flipside is that I think Edge really is the master of getting 3 yards out of nothing (and 3 yards out of something, which is why we're having this converation).