Team's Failure, who is Responsible?

This is the question we should always ask ourselves in gambling whenever we are are playing bets, then discovered that the team we supported in sport bets for instance does not perform as we expected in their match.

Who do we often often blame to be responsible for the failure to deliver, is it the coach or the players, because the two plays the most important roles towards the performance of a team in winning or loosing a match play, so let's discuss about who's responsible and should receive the blame.