We have our best defender at second (and let's face it Guzman and Kennedy offer just as much offensively), and a guy that can get on base in the two hole.
Gonzalez is an average defender at 2B which is an upgrade over Guzman/Kennedy but he is basically Wil Nieves at the plate when he faces RHP. We don't need another offensive liability especially if Desmond and the pitcher are also starting.