By defination, this is a running play, enforcement spot is from A's 14 resulting in 3/1 from A's 29. IF he had fumbled, it becomes a loose ball play with previous spot enforcement = 1/10 @ A's 35. I've lobbied hard for several years to have all B fouls, when play ends behind LOS to be enforced to previous spot. Several agree ONLY IF all A fouls (with some exceptions) be enforced from previous spot if their foul occurred behind the LOS. I'm strongly opposed to that.