According to a lawyer (I believe he was a partner at a Brisbane firm) on Nova FM this morning "supply" can be used as an exciting way of saying "possession" because under the law you are supplying the drug to yourself. What he said was it was a deliberate way to drum up media attention and little more in this context.
The latest is its based on telephone intercepts, so it's sounding Moreland more like media beat up BS to me.
No doubt there is some fire with all this smoke, but I think the idea that there was some drug syndicate running from the Titans locker room is starting to dissolve.