Dickey was clearly the story of the first half as far as pitchers go, but it might be that they didn't want to embarass the starting catcher. Some guys just can't catch a knuckler. I don't remember how it all went down as far as replacements go and when they came in, but the manager might have had to take that into consideration. Also, I think early on, people weren't quite ready to believe he was as good as he actually was this season. Like maybe he might fall apart with a horrible start at any moment.