Real Betis coach Manuel Pellegrini admits some regrets over his time with Real Madrid.
Pellegrini says he could've done more to better understand Real president Florentino Perez.
He told AS: “Ever since I arrived at Madrid we had differences in thinking about what the work of a coach is like with the board.
"Without having any fight, I accept differences of opinion. The president has a way of thinking about what coaches are and what coaches should do and I had a difference with him at the beginning of the season.
"I even offered to leave at that time. It didn't happen. The season passed and I knew I was out of Madrid whether or not I won the title."
“Maybe I could have tried to get closer to Florentino Perez, tried to talk to him before the problem happened."
He added: “The title (2008/09) that I did miss was the League title with Real Madrid. Cristiano Ronaldo was injured for three months, Barcelona beat us 1-0 with a great goal in the 81st minute that they hit a left-footed strike into the top corner.
"Without that defeat we would've be champions. The team had overcome many things, it was an unbalanced team. And it was the best Barcelona in history. It hurt me a lot not to win that title. There was no relationship with the board."