The truth is Yaya is a better DM but Busi suits our style better which is why he gets played more. But i still take a confident and an in form Yaya every day of the week. When a player loses form, its easy to forget his past contribution. Playing the second half of 07-08 season through an injury. His beastly performance at Old Trafford on a day when the rest of his teammates were poor, sacrificing his best position for the team towards the end of 08-09 and in such very imp matches(CL semi, final, Copa final) is admirable. Some cules haven't forgotten it which is why he is their fav. His tackle on drogba at SB is something Busi is incapable of. You need a beast to tame a beast. What i'm essentially trying to say is Yaya has his own assets which can be useful for the team in certain situations. So having 2 types of DM's can only benefit the team. But unfortunately, Pep doesn't rate him no more and hes too good to be a bench warmer. For that reason, he'll leave this summer. And i hope we can bring another Yaya just a bit more older and experienced. So he can be content with a bit-part role in our team.
Yaya hasn't had a good season, yes. There are a lot of reasons for that but i ain't gonna go in to that. But every player has a mediocre season. Busi 'll 've one in the future but you wouldn't want him out 'coz of that, would you? Nor would any of you be dissing or ridiculing him for it.
Yaya has been a good player for us. It'll be sad the day he leaves. His epicness at Old Trafford and CN against chelsea won't be forgotten by some of us. He was a key part of Barca's historic season and he atleast deserves respect for that.
Good luck to him wherever he goes.