Devlin -Yep, devolution implies he started out well rounded. He really rounded out his game in the last years of PRIDE.orcus - I don't understand the title given that you seem to be arguing that Rampage has regressed or de-volved, rather than evolved. Which I agree with.
i think he ment his evolution as a boxer has caused a detriment to have he was before or that he's evolved his stand up too far.
I was also using evolution because it is implied that continual development is always a good thing, but often it ends up detracting from a fighter's original talents.