Reasonable point re. Selles.
With Rosenior, it was said that he told Acun he wouldn't change, and that's also what we heard and saw from Rosenior himself (I won't change, trust the process, I believe in my philosophy, etc). That's not learning. It's a shame, as with a less dogmatic approach it could well have developed into something special given the existing bond with the fans, his early performance in the role, a supportive owner who was also doing great things off the pitch with the club, etc. I wonder if he then had to change & adapt when he took over at Strasbourg, as they are part of Chelsea. I might be wrong but I'd be surprised if he was given free rein in terms of just go ahead and implement 'his Rosieball philosophy'. I'd imagine he had to change to fit what the group there want to achieve, and also reflected hard on his time with us, using it as a really valuable period to learn from , and now reaping the benefit of. That probably wouldn't have happened had he stayed.