So, I would like to share my point of view.
First of all, I don't understand why some of you hate him so much and even insult him like ''burn in hell''. Maybe it's a joke, ok, it's a bit difficult to notice jokes through the internet but IMO it's not fair to treat him like this. I understand his decision. He is 22 years old and wants to play a lot more. Maybe there are several reasons, why he chose Bayern over Barca or Manu. To be honst, I have to admit that Bayern are currently (!) the best team in the world and every player wants to be part in such a team, with Pep as a coach. Pep gave Thiago the opportunity to compete on the highest level and Tito used him not as much as Pep did. We, as fans don't know all the reasons why Thiago left but what it is, I wish him the best for his future and that he becomes an even more great player in Bayern and of course in Spain.
Of course it hurts to lose such an diamond but I think that we can replace him well. I always considered Song as a really good player and IMO now is the time to give him more playing time. He adds a lot in defence and is a consistent player with a great ball control. He and Busquets could be a hell of a team. Further, Sergio and maybe new players like Oliver Torres (next season maybe) could improve our midfield well. I'm convinced that there are many many great midfielders in La Masia.
For some it might be hard to cope with losing Thiago (for me it is) but everyone of us knows Barca. As a fan, as a supporter and as a football fan, I'm sure that we won't lose quality because of Thiago leaving and further I don't see this club's future in danger. La Masia brought us players like Iniesta, Xavi and Busquets and they will bring us more of such players, just trust in our academy.
To cope with this transfer at the moment will be harder but as I said, we have Song, Busquets, Cesc, Xavi, Iniesta and Sergio Roberto. I believe in the managment that they know what they do. Even if I made jokes of Tito and even if some of you might react to this posts with making jokes of Tito, but he took over a club which won nothing the past season and lead this club to a glorious 100 points season. For some of you, it might be irrelevant but as Pep said, it shows that Tito is qualified for this job. Health problems are indeed a serious problem but we don't know how it will be in the coming month.
So to sum up this long text, I think that the loss of Thiago is bad, he would have been our future boss in the midfield but I'm sure that players like Roberto, Song and La Masia products can handle these high expectations well. We have to believe in our managment and see what comes in the future.
¡Visca Barça!