No
They were the 6th ranked team in the nation before Brett Favre and the Southern Miss Golden Eagles beat them.
The Bengals
Bengals
no
New England Patriots
The day after Irvin Favre died Brett defeated the Oakland Raiders, 41-7 on Monday Night Football, December 22, 2003
Brett Favre
October 30, 1988 in Houston by the score of 41-17.
Yes, on Sunday, January 17, 2010.
He is the only quarterback in the NFL to have beat every team, including the Cowboys. Yes, he has beaten them.
On October 17, 2010, Favre and the Minnesota Vikings defeated the Dallas Cowboys 24-21 in a game played at Minnesota.