On Craig Bellamy, he should be sacked as NSW Coach and not if he knew what was going on, simply because he hasn't won a series and the idiot keeps telling selectors to pick gidley.
Whether he knew about what was going on at Melbourne is yet to be proven, but i'd be surprised if he didn't know. He tells the board who he wants on his team and how much each player is worth.
As for player mangers, i don't see how blame can be put on them. They look after their player, they don't care about the rest of the team, if melbourne say to slater's manager here is 600k a year for him, his manager doesn't say, hang on a second i want to see if this deal is going to put you over the salary cap. They get the best deal possible for their players and move on. Melbourne may have been giving players under the table payments without managers knowing anyway.