How bad was Josh Vitters last year?

Everyone knows that Josh Vitters was terrible at baseball in his limited time at the big league level in 2012. Just how bad was he?

In RE24 (min. 75 PA), Josh Vitters was the 17th worst offensive player in all of baseball last year, just above…Mark Buerhle. If he had 200 PA instead of just 109, he would have ran away with worst RE24 in the majors (everyone except Buerhle ahead of him had over 100 more plate appearance than Vitters.)