Joe Posanski points out that during his time with the Royals, Gil Meche may have helped the Royals with more than his pitching:

And while such things usually are overrated … he really did offer a kind of value to the Royals that is difficult to measure. For one thing, he talked a lot to Zack Greinke. You always saw the two guys off somewhere talking over things. Meche was an outwardly modest guy who would never take any credit at all for helping Greinke overcome some of the difficulties he faced. But Greinke gave him loads of credit. When Meche signed with the Royals before the 2007 season, Greinke was a 23-year-old reliever who had only a year earlier walked away from baseball. In 2009, Greinke won the Cy Young award. Meche played some role in that. Greinke signed with the Royals rather than becoming a free agent. Meche had some role in that, too. It wasn’t just Greinke. Meche was always — ALWAYS — trying to help out. That was what the Royals had bet on. And that is what the Royals got.