Maddux is much better than Suppan, he's a clear 2/3 type pitcher. Maddux's FIPs 2005 4.06, 2006 3.80, 2007 3.58, 2008 3.75. Now part of that is likely due to park effect, but he'd be around a 4 ERA type. Which is also why if it was any team besides the Padres Gwynn wouldn't be close to enough since Maddux's contract isn't bad at all.