"What about Buster Posey, you ask? About +3 in 2007, with solid running-game and pitch-blocking stats. He lost almost a full run relative to the average number of plays made by D-1 catchers. 2008 was better, at +5, negating half of basestealing attempts and saving nearly an additional two runs by blocking errant pitches. Again, though, he made fewer ball-in-play outs than average."
WORST CATCHER EVER