I'm watching the Braves and Red Sox and the rookie Kason Gabbard is throwing a shutout into the sixth inning then gives up 2 hits. Francona pulls him because he's up to 100 pitches. Of course the next guy comes in and the Braves score a run. Earlier today Adam Eaton threw 6+ innings of shutout ball and had a 5-0 lead but he had 109 pitches and was replaced by Geoff Geary who made a blowout into an interesting game by giving up 3 home runs.
I'm just old fashioned. I don't care what the pitch count is, if a guy is throwing a shutout let him out there until he gives up a run or his arm falls off.