Evolving football philosophies

Noted philosopher Marge Simpson once said "we can't afford to shop at a store which has a philosophy". Philosophy is nice, but, like everything, subject to the dreaded Cost/Benefit analysis.
In fact, "footballing philosophy" is used only rarely to describe the methods of managers like Tony Pulis or Sam Allardyce and is reserved for so-called purists like Owen Coyle or Arsene Wenger. Almost by