Favre apparently is upset about Childress' influence in play-calling during games even though sources Childress seldom discusses the game plan with him during the week.
The plan normally is formulated by offensive coordinator Darrell Bevell.
An animated conversation between Favre and Childress during a nationally televised contest against the Carolina Panthers Sunday night started this week's reports about tensions between the two men.
"I think there are times I see things that maybe I feel like we could get to or a change that maybe at the line of scrimmage I could get to," Favre told reporters Wednesday in an attempt to downplay the incident. "He and I talked, as we have all year."
"Everybody in Minnesota knows that Brett Favre is running that organization," Favre's former Green Bay teammate, defensive back LeRoy Butler, told the Milwaukee Journal Sentinel this week.