Maybe some of the legal guys who post here, like Susan, can shed some light on this.
A club encourages players to use a product that is legal to consume, which then becomes illegal to consume.
Who has the duty of care to ensure players no longer consume the product?
The Sports Scientist or medical professional (who supplies the drugs)?
The clubs medical officers?
The coach?
The player's manager?
The player himself?
And please don't say 'all of the above' as while I would expect the Sports Scientist and the clubs medical officers to ultimately be responsible to advise of changes in ASADA or WADA laws, I don't realistically think that players would be trawling the WADA website to see if what they were taking yesterday, that was legal, is illegal today.
Given Dank was given the 'flick' by Givney from the Sharks, maybe the players were told not to accept substances provided by Dank, yet some continued to do so. This is merely my assumption, but if when Dank was sacked because of Givney's misgivings regarding the supplements being used and the Sharks and as a club, this information was not shared with the players, I can just see the players' managers on the phone to top QCs and a huge law suit ensuing.
However, the Sharks have been very cagey regarding this as they've apparently guaranteed meeting players payments while they're suspended, which, correct me if I am wrong, to me is almost an admission of guilt or lack of due care.
The same thing will occur at other clubs as well if Dank was supplying both supplements to players. Hopefully, Dank hadn't yet discovered these supplements while at Manly.