Everytime I begin to think you're a sensible poster you come out with some half baked theory like this
Plenty of managers have rotated/rested players pre-rafa and not just Fergie. Bobby Robson did it at newcastle as one off the top of my head. Ranieri obviously.
Fergie increased the longevity of Giggs as far back as 2002 by targeting him for select prem games while otherwise saving him for CL footy. Wenger back in arsenal's hay day his sides were winning the title in 2002 and 2004, would rotate Henry, Bergkamp, Kanu and Wiltord up front. The likes of Edu and Ray Parlour were considered his backup midfielders.
Rafa the visionary my fcking ar5e! <facepalm>