there are individuals that do it. I don't think it is out of the realm of possibility for a college football team to have 2-3 guys that do run sub 4.5 although BYU isn't one that regularly has that. I find Utah's claims harder to believe however, they claim to have a dozen guys running 4.4 or under every year which I find ridiculous, BYU claiming to have 3 guys one year that can do it isn't nearly as ridiculous as Utah having bunches of them every single year, but having a couple of them isn't unbelievable to me.