There only needs to be a possibility that the coach gave it to a player for there to be a charge, doesn't there?
No need for any evidence either. Just a made up story that might be possible is enough.
Outside of a charge - surely if ASADA are presenting this to the AFL tribunal, they believe it is true - hence they are statutorily obliged to investigate the club(s) in question?
Hey Darren Lehman has been sourcing HGH for 6 months from Dank - no need to investigate the cricket team at all! Move along!