Ah, so it’s not so much the system anymore but also quality of defending. I see we’re getting on same page.
Every error in football can be tied to some type of individual mistake, despite the conversations about the system. Was also true during Xavi. He was fucked over by the weaker squad just like Flick. The question is what can you do to improve the defense despite the known issues.
Flick and Xavi had different methods to tackle the same issues. Xavi protected the weak defense by playing a type of often ugly, end justifies the means football, Flick is hoping the attacking power bails out the crappy defense.
In any way, jumping on Xavi's throat after he was fucked over vs Inter by Pique's and Garcia's brainfarts for example (and many other examples) and now suddenly adopting 'oh, it's the players' fault' stance is hypocritical and duplicitary.