It's official: Matt Cassel is out for Sunday's game against the Tampa Bay Buccaneers. Romeo Crennel made the announcement at his Thursday press conference. Brady Quinn will get his first start in nearly three years in Week 6.

This was basically a formality at this point. Cassel didn't practice on Wednesday due to the concussion suffered on Sunday against the Baltimore Ravens and the Chiefs said they were going to be cautious with Cassel, which was an indication he wouldn't play. And he won't.

This means that the Brady Quinn era is officially here. The Chiefs play the Bucs on Sunday then have a bye the week after that so for at least one week this will be Quinn's team.

This is a huge opportunity for him. We're not sure how the Chiefs are feeling about Cassel's situation in the long term but it seems reasonable that Quinn could hang onto the starting job beyond Week 6 if he plays well.

You ready for the Quinn era?