Alonso just extended with Bayern.And they have Thiago, Martinez and a load other talented midfield kids.They have zero necessity for him.
And City replacing Toure with Fabregas ?

Why would even consider doing that.Their budget is infinite and with Pep they'd have greater pulling power.They would replace Yaya with Pogba or some other young midfield star not used up goods like Fabregas.
May I remind you that Fabregas is having a $#@! season so there's no reason for rich teams to even consider him.This is for teams with a lower budget like Juventus, Atlético, Liverpool etc who would consider him as their budget is not big enough to buy the best.
Frankly you're stuck in the past.This current Fabregas is not elite.And if you thought Pirlo was a defensive liability , this guy's just as bad.
And Chelsea don't need any of that pittance Fabregas money to rebuild.They need not comply for ffp anymore and they'd be receiving a truckload of cash next season either way like every other EPL team along with a progressive revenue(will cross the €500m barrier next yr).So yeah, the days where they had to sell to rivals to meet ffp demands are over.
Btw the Cech transfer was irregardless of ffp.It was Cech himself who was very keen to move to Arsenal.
Now if you were talking about Gündogan here instead of Cesc then I would've agreed with you.An older, slow Cesc just isn't worth the hassle for top teams.