That and Posey is 10x the player Pietrus is. Pietrus takes bad shots and disappears in games way too often. Posey ALWAYS does the little things in every game to win, takes good shots, and plays very good defence all the time and knows where to be on rotations. Its not a coincidence hes been a big part of 2 championship teams. Pietrus is very unproven to this point and has been a disappointment.
I cant see Posey going to DET though.