But I'm not sure what "led with his head" really means on a play like that. If Winston stays upright, it's likely a tackle with the defender's shoulder pad on Winston's thigh. The defender's head is only in the lead because, anatomically, that's where your head is on your body. And it looks like he ducks his head only reflexively at the last moment because of Winston going down. Again, I'm not saying it was the "wrong" call. I'm just saying that I think it is incredibly difficult to officiate in a lot of situations, and to me, this is one of them. Part of me wants to say "on this play, I don't see any blatant intent to 'lead with the helmet,' and I'm not sure 'leading with the helmet' is easy to define in this situation, so I think the 15 yard mandatory penalty is fine, but I'm not going to eject the player." On the other hand, it is impossible in man situations to judge intent, and the rule is designed to discourage that type of contact whatsoever, even if it may be almost unavoidable in some cases, so you always eject no matter what. I don't think either interpretation is necessarily THE "correct" one.