You have to figure out whether it is is part of a plan - the type where Wallace has nominated a player in the past for treatment (and usually a young star on the rise). I say in the past because Terry told us last week that he doesn't do it any more, so we have to accept that
If Murphy's influence is dulled by being decked, "standing up" to a bloke like Carr is not going to do much to reverse the advantage that Freo obtained. If "standing up" means to put him out of the game by fair or foul means, that would do the trick of course. But someone like Carr, or Pickett, or the Scotts are not going to be intimidated by anything less, so what is the point. In fact, you play into their hands by losing your focus on the ball and the game. And they are tough enough not to succumb to fair attempts to even up like bumps or shirtfronts in play. I'm sure there are heaps of AFL players who would be delighted to give Pickett what he has dished out to others, but few, if any, have managed it.
I think if I were an AFL coach, my response would be to return the favour by targetting one of the other side's youngsters. A sort of Mutually Assured Destruction scenario. So you'd ask your bigger players to try to maul one of their young players, or target one of them as he was drawn into a melee. Or look for an opportunity to clean them up in play. Then their younger players feel hunted rather than protected, and the retaliation from their senior players will lead to them forgetting about the football and going on report.
Not a nice thing to do, but then again deliberately trying to intimidate a young player is not nice to begin with. Remember when Wallace had his senior players wrestle and jumper punch a young Michael Gardiner, or when Wallis and another Scum player strangled a young Brad Green behind the play in the 2000 GF and put him out of the game with an injured neck?
If the Tigers go hunting Murphy's head, why not try to do the same to Tambling or Oakley-Nicholls? If Essendon* do it, why not go after Monfries? And perhaps it might be a good idea to leak the plan so they know what will happen.