Dave Meltzer on the motivations behind the heel turn at Elimination Chamber
The motivation is that Dwayne wanted Cody (legit) and I know this as a fact because a mutual friend last week mentioned the politics as Levesque absolutely thought it was a terrible idea. But in a fight withDwayne, with Nick as arbiter, he loses every time. However, several convinced Cody to simply refuse, so art was a lot like life this time. Dwayne wouldn't go after Cody politically so he let it go. Cena was the second choice and Cena was fine with it. Punk was never asked.
Edit: Looks like Meltzer deleted the tweet so here's a screenshot: