So... this is all second-hand information so feel free to take it how you will. I posted last year about the fellow "cheer dad" who was the Maroons strength & conditioning coach for 5 years, and the same for the Broncos for a time last year. I caught up with him again at the latest comp and, of course, picked the **** out of his brains like you'd expect I would.
So the last time I spoke to him, he'd just finished up as the strength & conditioning coach. His role was supposed to be quite temporary, but after starting in the pre-season, he'd been doing it 7 months by that point and the Broncos (in his words) said "we are looking to make it permanent, are you interested in applying?". He trains a couple of high profile athletes (think olympic type sports) and one in particular was his main focus leading up to some world comps, so he said he would be interested as long as he could also train this other guy. He knew they wouldn't accept that (they didn't) but thought he'd see.
So, the really interesting part is that he finished up pretty much immediately... right before the Broncos' slide last year. I of course joked to him about this, saying that he was responsible for the excellent form, so he shared a bit of what he'd done when he worked with them. He's meticulous with his prep, and they must do all kinds of tests and monitoring on the players, and he had found that on the Wednesday, if they had a really good, focussed training session, they'd kill it on the field on the weekend. When they were off (mucking around etc), they sucked on the field. But he also found this was happening on a chemical level - that they were finding after the positive sessions their testosterone would peak just at the right time for the games, and the opposite after bad sessions. And obviously with the players not being robots, he couldn't just force them to be switched on for the sessions. He also had an ex-colleague in a different code who was finding the same thing. The Broncos were obviously interested in this (he said he had a fait bit to do with Matt Ballin with this stuff), and the Broncos were asking around elsewhere if the results were being found in other teams, and stumbled upon his ex-colleague (without knowing the two had a working relationship) who of course backed it all up.
The findings were extremely consistent, in that the performance on the field mirrored precisely the results of the training session the Wednesday before, to the point where he could tip their wins and losses (hello betting agencies). The only time he got it wrong was when he tipped them to lose, they were losing at half time but the other team copped two sin bins so they came over the top to win. Like I said, the Broncos' losing run started immediately after he left, so we really only have just over half a season to go off here though.
One of the other things he said was that he made sure to tailor the training to the player - ie, Ezra has an ongoing knee issue (must have had it since last year evidently) so making him do copious squats with all the others was not the best idea in his opinion. Same for some of the outside backs, who had previously been training more as generic strength-based footy players, instead of concentrating on speed and accelerative power etc.
He said the guy that took over from him was a bit more regimented, so the training was less tailored. BUT he said that he's pretty sure it's the same guy still doing it now, so either his methods were adjusted as part of the off-season review (and they carried on the training style that was working for previously), or the methods were actually quite sound and they just needed time to work, who knows, but obviously with the results this year whatever they are doing is working.