Coach John Fox isn't revealing his quarterback rotation for Thursday night's preseason finale at Arizona.

It's likely Brady Quinn will get the start with Kyle Orton sitting this one out, however. Quinn has outperformed Tim Tebow all summer and didn't play last week against Seattle, when Tebow finished up with another inconsistent performance.

With Quinn likely having secured the job as Orton's primary backup, the bigger question Thursday is whether he'll split snaps with Tebow or if Adam Weber plays.

Weber, an undrafted free agent from Minnesota, has been impressive at practice but may not get his shot to play in the preseason because the Broncos would like to slip him through waivers onto their practice squad. Playing him could expose him to other teams and quash those plans.

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