It probably does suck to be Sage Rosenfels. I'm sure it stings to see someone else handed the job buuuut...he was traded from Houston to Minnesota, not signed as a FA. He didn't really have much say in that. He can also look at how long he would have been a backup in Houston behind Matt Schaub. Potentially alot longer than for the 2009-2010 season. I'm also a firm believer that if you've been an NFL backup for 8 years....your probably just an NFL backup. Not to mention that he actually had more time to seperate himself from Tarvaris and apparently couldn't win over the majority of the staff/players. As a fan, I want Favre behind center...as a human, Childress handles the situation poorly.
As far as Favre playing poorly last year...most people attribute that to Mangini completely abandoning the run down the stretch, coupled with Favre's bicep. Could be excuses but seems reasonable to me. If Favre throws 19-23 times a game, completes about the same percentage (66%) and can keep the picks to a minimum (for Brett Favre)...I think they'll be really really good.