Generally speaking, most Spanish clubs' operations revolve around the president. It's not structured like others where roles are interspersed among departments in moderately shared responsibilities. The manager controls the staff, players, and training; the president with effectively everything else.
However, because Real Madrid endlessly propagates this self-fulfilling prophecy, it leads to as much euphoria and grandiose expectations as it does mini-crises and derision. Thus, either one or the other has to go.
It's the same thing every season: a run of games where they look unstoppable (8-0 Malmo, 10-2 Rayo), blemished by less than convincing results (0-4 Barcelona, 0-1 Villarreal). Then, the following two games are do-or-die, someone gets the guillotine (the manager) in May or sooner, and it starts over again.
No one in the world - let alone Europe - engineers its own publicity and self-image as they do. All there was is, and ever will be is Real Madrid. The only club you will ever want to be associated with. Why in the world would you want to play for anyone else?
It's because of turbulent presidents such as Pérez and Calderón before him that make it impossible to see sustainable progress. Or even feel sympathetic as Scouse pointed out.