Rampage is his own biggest enemy.
Rampage is still relatively young and has a tremendous skillset, but he's pissing it away and has been regressing since the Forrest fight. If Rampage woke up one morning and took notice that championship caliber training takes alot more investment and committment and involves evolving as a mixed martial artist, I think he could still be a contender....
The problem is, Rampage has surrounded himself by yes-men for years who haven't pushed him to broaden his repertoire and is generally lazy, uninvolved and does not care to put world champion levels of work into developing his game and is complacent to just rely on his go-to skills(boxing).
Rampage's greatest problem isn't his diet, it's about his overall outlook on fighting. Nothing is ever his fault, he takes his skills for granted and doesn't invest enough into being a top tier fighter.
MY MMA RANKINGS
HW Velasquez Cigano Werdum Cormier Bigfoot Barnett Mir Browne
LHW Jones Machida Evans Hendo Davis Goose Teixeira Shogun Mousasi Bader
MW ASilva Rockhold Belfort Weidman Jacare Okami Kennedy Consta Belcher Boetsch
WW GSP Hendricks Condit MacDonald Diaz Maia Fitch Kampmann Ellenberger Pyle
LW Bendo Alvarez Maynard Melendez Thomson J.Miller Diaz Pettis Chandler Grant dos Anjos
FW Aldo Mendes Curran Lamas Frankie Zombie
BW Cruz Barao Fernandes Faber Moraes