I can't believe you people are still using old methods over and over again.
You need to be basing your rules on scientific research, not on traditions!
POLICY N°1: Formal hiring. Forget about social networks and clubs, we need to have people hired based on jobs posted publically.
POLICY N°2: Competence overrides experience. It does not matter how experienced you are if you can do the job better!
POLICY N°3: No chit-chat at coffee machine. All of this talk is inefficient and it would be better to get down to work instead.