Jon Lester hasn't been himself this season. He's shown flashes of his old brilliance here and there, but his 3-4 record, 4.64 ERA and 1.38 WHIP just don't reflect the kind of pitcher he really is.
If it seems like Gonzalez has hit a lot of weak fly balls to the outfield this season, that's because he has. Per FanGraphs, Gonzalez has a 37.3 fly-ball rate this season, up from 32.1 percent last year. The bad new is that he only has a 6.1 HR/FB rate, down from 16.4 percent last season.