I was just reading this from the original post... That makes it sound like the division was already there and Favre's arrival just expanded it, not caused it.
It looks like one of the newspapers interviewed 13 players anonymously and they all supported Brett. http://www.twincities.com/vikings/ci_13212029
Favre fails, Childress gets fired. Plain and simple. The QB issues (locker room split) prior to Favre's arrival is an interesting angle on the story. There has to be TONS of resentment toward Favre. I know I have some and I could care less about the Vikings.
This turns out to be just another in a long list of ESPN "make them up as we go" stories. Something to keep their shills busy.
"I don't think anybody in this locker room even knows what that means, let alone could use it in a sentence. When I first heard it, I thought it was an STD and I was like, 'Whoa! We preach abstinence around these parts.'" - Vikings DE Jared Allen on reports that there is a "schism" in the locker room over Brett Favre.