448 PA, .286/.359/.382, 5 HR, 2.9 bWAR
Buster Posey, like most of the Giants, had his worst season as a big leaguer. This speaks to his graciousness and leadership. He didn’t want to show up his less talented teammates, so he went down with his ship as a good captain does. If the Giants were going to die, they would die together.
It also didn’t help that he had hip complications and was physically incapable of hitting for power. It was the first season he slugged under .400, and he only hit one more home run than he did in his injury-shortened 2011.