How will the Vikings do with Frazier as head coach?

Since Frazier played in the nfl before, and went to the superbowl with the bears he obviously can relate better to the players and will have that experience under his belt. i know its to late to really change anything for the season, but how do you think this will go? also do you think Favre has to much pride to go out with a season like this? do you think he will want to stay now that childress is gone?