While I see your point, he's gone on record to say that he needs one more draft and then he'll have the right players in place. So if we're not at the very least challenging for finals in 2016, that's enough time for me.
As for what his serious damage could be (and I know that these aren't necessarily your thoughts) the club's future prospects look bright, with potential once in a lifetime players like Bontempelli and a serious group of midfielders. We've gained members since he's been put in charge, and looking to increase on this. There's been more exposure of the Bulldogs in the media this year, and most of it til the end of the season has been positive. An exodus could happen, but losing Cooney, Jones and Tutt isn't an exodus really. Only Jones is a big loss, I'm a fan of Tutt's but not a big loss. So most of that possible damage is actually a positive for McCartney, or at least it is in my mind.
And as for the other supporters that make a decision on what they read in the papers or Facebook, we can't really do much about them whatsoever. And the majority of those supporters, yes even the idiots, are thinking that the fact that there's a rift between older players and the coach is stupid. Whether that's true or not remains to be seen, but I don't think it's impacting members much.