Let me preface by saying I like Jerry Narron overall. You are not reading the words of some Narron basher.
But too often I've noticed he allows the pitcher to bat in let's say the 5th or 6th or 7th inning, and then pulls them as soon as they allow a baserunner the following inning. You have to have some foresight here. If you know your pitcher is already on a short leash, then you have to put in a pinch hitter for them when they come to bat. Narron is trying to have it both ways and it could be costing us runs. And I'm not just talking about the Eric Milton example on 4/16 against the Brewers (Milton hits in the bottom of the 5th, then is lifted after Fielder doubles to lead off the sixth) but that is one very good example. Why let Milton hit there if you know you are going to take him out as soon as he gives up a hit the following inning? I have noticed this quite often with Narron over the last couple years. This is one of the key differences of managing in the NL and AL and Narron is still lacking in this area.
IMO, if a manager lets the pitcher bat, that means you are confident he will last at least another full inning or two. If you are going to pull him as soon as he gives up a hit or walk, you might as well take him out the previous inning, send up a pinch hitter and hope for some runs.