5. Rex Grossman — .612. He had one great winning year, going 13-3 in the 2006 Super Bowl season.
6. Jay Cutler — .590. He was supposed to take the Bears to the next level. We're waiting.
7. Jim Miller — .576. He won 15 games in 26 starts for the Bears, going 11-2 in 2001, but he started only one other game for seven other teams in a 12-year career.
8. Rudy Bukich — .566. In 1965, Bukich was the third-leading passer in the NFL with a 93.7 rating, and he led the Bears to a 9-3 record as a starter (with a little help from two rookies named Sayers and Butkus).
9. Billy Wade — .551. He went 27-20-2 as a starter from 1961-66 after seven seasons with the Rams, and all he did was break up the Packers' NFL championship string with an 11-1-2 mark in 1963. He also led the league with a 93.7 rating in 1961. Oh, one other thing: He came out of Vanderbilt.
10. Jim Harbaugh — .538. His record as the Bears' starter was decent, but his record as the 49ers' coach is outstanding (.789).
Front office chess
You may have heard the Bears brought in former Packers running back Ryan Grant for a workout last week. But they did more than work him out. They also offered him a contract, according to league sources.
Their timing was bad, though. The Redskins also wanted Grant, and they offered him a deal before Grant's workout with the Bears in hope he would leave Chicago immediately. Grant went through the workout and was leaning toward the Bears' offer.
But as he was on his way to take a physical exam for the Bears, he decided to take the Redskins' deal.
Why? Whereas the Bears would give him only the veteran minimum of $925,000, the Redskins offered slightly more, plus playing-time incentives. And Grant figured he had a better chance of playing for them with Roy Helu on injured reserve and their other backs not as skilled as Matt Forte.
Why did the Bears want Grant? He could have been an upgrade over Armando Allen and Kahlil Bell. With the Bears, he likely would have been the third back.