His only win worth mention is against Wanderlei Silva. Who else can you say that he's beat that's worth mentioning. Please do no say Akiyama either. He's a chump. I would beat his ***.
You're saying like he's one of the worst guy's on the roster, yet he has 22 victories with 12 coming from inside the octagon so he definitely deserved to be there. Then he dropped 4 in a row and decided it was over, can't hate him for that.
Dana fired him. He did not retire. Dana does have a heart despite what people may think. He's a nice guy and isn't going to "fire" Leben and ruin his legacy. Dana got rid of him though.