"The new rules are good but they are only the base" Boris Margeta

Why do referees whistle different in many countries? Is this the
case and when yes what do we have to do? Everybody acts on one set
of rules and therefore there are no differences regardless of the
country. As a referee you don't have to look angry to players or
coaches during a game. But at the end we need to establish another
level for referees (and players and coaches maybe also) that is
more professional. It's not acceptable that we have only pure
amateurs within the waterpolo scene.