One reason Derek Anderson remains starter

Arizona Cardinals quarterback Derek Anderson has completed only 52 percent of his passes overall this season, but his fourth-quarter numbers put him among the NFL leaders through three games.

The way Anderson has played late in games makes it easier for the Cardinals to keep him in their lineup even though coach Ken Whisenhunt has said the quarterback must improve.

The chart shows the five quarterbacks with the highest fourth-quarter ratings this season (minimum 15 attempts), according to ESPN Stats & Information. I've also included numbers for NFC West starters Alex Smith, Matt Hasselbeck and Sam Bradford.

2010 Fourth-quarter Passing Leaders: Through Week 3