Not that straightforward, is it?
Madge flogged the players, remember Jesse Sue half-collapsing, didn't result in ongoing success. Does Cleary flog his players? Robinson? Bennett?
Also cannot ignore the case of poor young Keith Titmus at Manly. Imagine if Shawn Blore has a medical incident because of that intensity.
I think people make real mistakes pointing to Craig Bellamy, arguably the greatest coach of all time, and suggesting that it's just a matter of replicating some of what Bellamy does, as if that was a simple thing.