The legendary Dutchman has taken yet another swipe at the outgoing Real Madrid coach, while he's not impressed with Brazil boss Luiz Felipe Scolari either
Mourinho is expected to be confirmed as new Chelsea manager by the end of the week, but Cruyff thinks the current Madrid coach will not achieve much in the remainder of his career.
"Mourinho started pointing fingers at everybody around him when things went wrong and he's now even putting people up against each other within the club," the Dutchman writes in his weekly column for De Telegraaf.
"He's fighting out personal vendettas at the expense of club icons. Things don't work like that in football, because it destroys the team's morale.
"It's one of the main reasons why his spell at Madrid was unsuccessful and I don't think Mourinho will achieve anything in the future either."
Cruyff then had his say on Luiz Felipe Scolari and slammed the Brazil coach for his decision to insist Bayern Munich released Dante and Luiz Gustavo ahead of the DFB-Pokal final for the international friendly against England.
"I don't care much for selfish behaviour and that's why coaches like Scolari and Mourinho annoy me. Just look at Scolari. The first game of the Confederations Cup - a friendly tournament - is on June 16, yet he forbade Dante and Luiz Gustavo to play the German cup final.
"It was the last game of Bayern's best-ever season and the post-match celebrations in Munich were the icing on the cake. That shows you don't really understand things."
Brazil were held to a 2-2 draw by England on Sunday evening.