Guardiola wants a year off... he's said it in various interviews. So FSG could give Kenny another year and see in a year's time perhaps.
Managers always say 'I'm tired and I want a break from football but when they see a new challenge with a good project they take it. A lucrative contract also goes a long way in convincing managers.
Depends how long "a break" is, eh? Maybe it just takes a few weeks of not having to think about your club during every waking moment. A new challenge could simply be moving to a different club with different needs, because it forces you to think in a different way and such change can often be holiday enough. I think some managers also get tired of the stress of needing to have all the answers all the time - as a club with the mystique that Barca have created certainly demands. But one can't help the feeling that if he goes he will leave Barca in much the same state as Mourinho leaves his clubs - near the edge of collapse and with no simple way to replace the key players. Xavi, Iniesta, even Alonso all look tired right now, and I doubt the reserves have anyone outside Fabregas of similar quality to replace them. My belief is that they will need to change their style sooner rather than later, and that implies a season (at least) of below par performance. Right now it's all about Messi, but even he can't beat 11 players by himself (though that doesn't apply to some of the La Liga clubs). "One man team" anyone? It wasn't like that a season or two ago, when Messi was simply part of the engine, and Barca pretty much swept everyone before them as a result.
