Newcastle and Managers being sacked. The club have no idea how to treat Managers and will therefore never achieve success until they change this attitude. Success does not happen overnight. This is one cliub the likes of Man Utd, Chelsea, Arsenal etc have no need to be concerned about.
The problem with Newcastle is the over rated big ideas the fans have thinking they are a big club, thinking they deserve sucess, and the weak management that buckles everytime the fans get restless. They will never suceed with this approach.