Nah...I used to think so, but not anymore. He doesn't have the skillset that Foreman did. I don't think Lyle or Shavers would beat Frazier, either. I think they all could drop Frazier.
Frazier would outwork Baer and he was defensively good enough to avoid the majority of Baer's wild swings. Only thing that might help Baer would be that he was a decent inside body puncher but I reckon Frazier could cope with that
It would have to be the exception rather than the rule - that is, a totally focused & deadly serious Baer. I still wouldn’t favour him, but is it possible? Yes. I sure would bet on Frazier though.