That's not true, no matter how much you repeat it. At Madrid all of Khedira, Alonso, Modric, and Illarramendi are of starting quality. At Bayern, they have more consistent midfield depth than us even if they use their players in different positions. Chelsea have a stacked central midfield as well with players who all want playing time. None of those players are given the same holy pedestal status that is given to Xavi or Iniesta which is why their spots are competed for rather than ordered.
The point is that Thiago shouldn't have only been playing trash minutes and should've been treated as a player of potentially huge value and upside, rather than simply labelled 4th best CM which is an incredibly low intelligence statement in making managerial decisions. Keeping 4 star midfielders happy isn't that difficult to do (Tata would've been able to pull it off easily) and soon enough it will be 3. It's a very weak rationalization to say that what happened was the only possible scenario and keep the false idea that there was no mistake made.
I mean look at how Thiago is performing at Bayern with a manager who trusts and has confidence in him. In a team where he was determined to be a fringe player, he's now shining. Last season he may not have been the best (he still did show great quality) but then again the likes of Pedro, Alexis, Bartra, Pique, Xavi, etc. all looked horrible because of the system. It's blind to say that he didn't deserve playing time because he didn't pull out these types of performances back then.