Does Guardiola Have to Change Clubs to Prove His Talent?
Probably the same question can be asked for the Xavi, Iniesta, Messi...
For Guardiola, if he cares at all about his coaching legacy, he needs to change clubs and win. Barca is so loaded with smart, gifted players that have been playing together since they were teens, a chimp could coach them. Granted, their bench is slim compared to Real, but still I don't think his impact is as important as any other coach who has to create a philosophy and team identity.
As for the players, I would be curious to see what they're able to do without one another. On the other hand, I don't think in my lifetime I'll see the level of play they deliver, so as a fan I hope they stay together as long as possible.