many of the DOBs from the default roster are incorrect. furthermore, the default roster does a bunch of stupid things w/ college;
ie players from SEC Mississippi are sometimes listed as Ole Miss, other times Mississippi; players from Texas Christian are sometimes listed as TCU, other times Texas Christian.
i recommend any other roster makers take the next roster i post & restore college & DOB from it to their own files w/ the restore tool, as i have recently updated all these to be *100% accurate (im sure one or two mistakes slipped through since the info is pulled from NFL.com, which also makes occassional errors)