If, and that's a big if, this is true my guess is Cena. He and Vince have apparently had a tense relationship as of late and I don't think anybody else is in any position to call Vince out. Punk is in the middle of a push of a lifetime so I don't know why he would jeopardize that.
I'd bet Cena. Remember there was a bit of an issue between Vince and Cena regarding the Cena surgery where Vince wanted Cena back sooner and Cena said he was taking all the time necessary by doctors orders or something like that. Vince could have been pressuring Cena to come back saying the company needs him in the ME to sell PPV's and ratings and Cena could have retorted that maybe Vince should have built more over depth on the bloody roster rather than putting the whole company on the back of one man - Cena. I could see how Cena could be pissed that he's injured and needing time off and Vince tells the writers to write as if Cena will be competing even after Cena said he'd need the month off.
So they know exactly what was said, how it was said and how few people there were in the room but they don't know who actually said it? I swear to God every time I read a dirt sheet report my IQ drops.
I can see why PWInsiders don't want to mention the name. Because if they do, and it really did happen but the wrestler they name goes on Twitter a says it BS, then people will say PW are talking shite but they aren't really.
Tbh, I dunno if CM Punk is truly in the position where Vince couldn't just fire him, if it was a prominent guy, to me, only Cena would have the protection to say it's all vince's fault to his face and not get fired on the spot but that's just my opinion.
Yeah cena is the only guy I think that can call vince a vanilla indy midget hack and not get fired. He can then go the Kevin Nash route and say "I'm booking myself to be pissed off at you vince" and leave.