While it doesn't eliminate the possibility of him having competition, I think we're probably looking at Matt Cassel being the starter next year.

"According to ESPN's Adam Schefter, Matt Cassel will "for sure" be the Chiefs' starting quarterback heading into training camp.

Schefter's assertion comes two weeks after new coach Romeo Crennel backed Cassel at his introductory press conference. Schefter's comments leave the door open for the Chiefs to add competition, but the feeling among organization higher-ups is that Cassel can still be a success. Free agent Kyle Orton has hinted he won't be back after leading the Chiefs to a 2-1 record down the stretch. "

Source: http://www.rotoworld.com/player/nfl/3237/matt-cassel