Fullback intercept angle

Is there any way I can teach my 15 to take a better angle when intercepting a breakaway runner? He always runs at the runners current position instead of taking a reasonable angle to meet the runner a bit farther downfield. There's no reason he shouldn't at least have a chance at a tackle because of taking such a poor angle.
I think this is somwthing to do with the program. When it susses that your 15 will not ( should not ) make the tackle it sends the graphics into some weird display of running in what appears to be the totally wrong direction.