I was thinking along the same lines, but it stops being a metaphor the second he makes it specific to Gore. Killing the team's head was a metaphor, but once you say to kill Gore's head, the message is very clear. The editing makes it a bit unclear as to the timing, but if you go with that whole kill the head metaphor and then tell your team to hit Smith in the chin, again, say goodbye to it just being a metaphor. The whole thing is incredibly disturbing to listen to, especially with what we now know about all of the concussion issues.