Haha , No

Fedor is the Greatest MMa fighter that has ever Lived anybody who comes on this board and hates on him is a moron who know nothing of MMA. Fedor is in the Twilight of his career and will probably only fight 1 or 2 more times. The thing is Fedor does not care about his status or popularity especialy not at this point. Who does the UFC have that is really any good. That fact that the UFC champion is a 280lbs steroid freak who only has 5 fights on his record and all 5 of those fights are against Has beens or cans. That right there should tell you the UFC heavyweight belt means less then nothing in MMA.
Frank Mir is a bad fighter. His Jiu Jitsu is sloppy and his Striking is embarrassing. Randy Couture has not been a relevant Heavyweight since 2006 and even then he was losing every other fight. And Heath Herring has not been relevant for even longer then that. The division is filled with guys like Shane Carwin and Todd Duffee. Carwin has 12 fights that ended in the 1st round. But is that really that impressive when you take in to account that the only moderatly significant name is Frank Mir

Besides Overeem would destroy every single fighter in the UFC Heavyweight division