4 old players past their prime all having career years or best year in a long time... Crawford (34 - 131 wRC+), Longoria (35 - 142 wRC+), Posey (34 - 146 wRC+), and Belt (33 - 135 wRC+).
Maybe I'm a conspiracy theorist or maybe it's fishy as hell. Regardless of what you think it's some serious anomaly or seriously sketchy.