Just to add a few extra bits of info and my further thoughts:
I am leaning towards accepting it, as I wonder if the second half of the season will wear down on Pettitte a bit. He's been great, but in my opinion he's been abnormally great. Great K/9 so far but is that sustainable for him?
How much of a buy low is Gallardo anyway? His numbers in past seasons haven't been stellar, but he's due for some consistency, right? I would be hoping for an ERA in the low 3s for the second half. Not sure if that's ambitious or realistic. Maybe a second half closer to 3.50 would be more realistic.
I don't have access to my league at work so can't check the detailed standings, but when I'm home I'll check to see how much of a gap I have in the saves department. I think I'm up around 10 or so on second place, but after that I'm not sure. Also Johnson has been stellar this season, but is it sustainable? I know looking at stats in isolation don't always tell the whole story, but his BABIP is .145. That can't remain that low, can it?