Kinda off-topic but somewhat still relevant but I love the whole "Pure Boxing will never work in MMA" argument from MMA fanboys. While it maybe true, you can essentially argue the same for for any style/background/base in MMA. Nowadays, no fighter can go into MMA as a pure boxer/kickboxer/MT Fighter/BJJ player/Wrestler/BJJ because each and every single style has it's limitations and as well as it's well-advantages and you have to cross-train to adapt.
To say that a boxer cannot train and adapt to MMA is as silly as telling an ADCC grappling champ that BJJ could never work because in a pure BJJ match, you wear Gi's and you're not allowed to strike. That right there eliminates all forms of gi chokes, spider-guard, x-guard, etc. Are you gonna tell Demian Maia or Roger Gracie that they wouldn't be able to adapt their BJJ to MMA?
If not then why would you think elite level boxers like Pacquiao, Mayweather, Klitschko, Povetkin, Adamek, Paul Williams, Andre Ward that they couldn't adapt their boxing to fit MMA? Are crisp solid technical punches somehow less effective than wild, loopy, chicken-winged, bar room brawling style punches that 90% of a MMA fighters use? What about the pisspoor near non-existent footwork and the complete lack of head movement? And please don't give me this crap about how kicks prevent that from happening. Go watch a K1 fight involving Aerts, LeBanner or Bonjasky and tell me they don't use footwork/head movement in their fights. Tell Anderson Silva that when he played the Matrix against Franklin and Forrest.
Of course pure boxing doesn't work in MMA, neither does pure BJJ, wrestling, Muay Thai, Judo or Karate but successful players of all those backgrounds have been able to adapt to the sport by taking the skills that are applicable and utilized them successfully, not sure why anyone would think a boxer couldn't do the same.