Initially defeatist, he was likely informed of ramifications should the matter be pursued or placated with promises in order to back down from any intended position or confrontation on the issue, however once this did become an issue and those who may have advised them became under pressure and otherwise found their own positions threatened, the position of weakness in backing down creates a strength that in any future effort you might be the one people then turn to in order to make the decisions on the matters you showed concern / foresight over. I'm not exactly sold that his is a position of self loathing for a paycheque or a dog playing dead so he can turn around and then severely maul / dominate his oppressor.
Because out of any changes to the clubs medical departments and practices, who will the club and game as a whole turn to if not the head doctor?
Another one rolling the dice?
If the board is spilled I'd expect a broom to be put through and his position would be vacated.
I don't think he's there for the paycheque: love of the club, ego and prestige for sure, I do think that like a lot of intelligent people he isn't that smart, he thinks he's done nothing wrong, he was loyal, and he did the right thing difficult though it may have been as he loves Hirdy, he loves the club but Hirdy was dirty, he probably thinks Hirdy got unlucky. He's had a working lifetime of respect from an institution and people he loves, he's started up a sports medicine business and been very successful, he's a great man working for a great club at the top of the tree, he has done nothing wrong; the AFL have validated this by backing down from the court case and sending him on a holiday.
It depends on where the ducks line up, at it's worst he's the doc in charge of a club where systemised doping took place on his watch, he tried to inform the board, but hardly pushed the point, he sent went email then played possum, he is at the very least complicit and is hanging on to his position to keep his practice going, he may well end up losing his licence. He's a weak petulant little man, who has always craved respect and power, his association with EFC has given him that self esteem and the admiration of his peers and underlings, he's a narcissist with an inferiority complex.
The question really needs to be asked of him, "which is more important your Hippocatic oath and professional integrity or his love for James Hird the EFC and the conviction of his own superiority? I think he has chosen the later and used his smarts to justify the decision.