I'd like to see Gibbons have a better replay challenge record, but he's not the one actually looking at the video. He also seems to waste one occasionally to stick up for his player when they're sure they're right.
As far as one run games go, I think that has more to do with our personnel. We have a lot of guys who take big swings, and when you're playing for a single run against high end relievers that may not be the best fit.
I think the only real issue is some of the weird lineups he posts on occasion.