Actually, in this lineup I think Murton fits in well in front of the pitcher. Murton is more likely than Perez to turn over the lineup by getting on base thus allowing the pitcher to hit or sacrifice. Another benefit of Neifi batting 7th is if he can get on base Matt can potentially drive him in. Conversely, Neifi has the lowest OBP of all the regulars so there is a greater chance that the pitcher will leadoff more often. All things being equal, you don't want Neifi batting 8th. He's the worst hitter in the lineup. There's a much higher chance of Neifi stranding runners, which is more important than turning the lineup over, or getting on base for the 8 hitter. If Murton hits 7th, he's going to get more runners to drive in than in the 8 spot. Again, he's the worst hitter in the lineup(by far), he should be hitting in the lowest spot. The 7th slot is not considered an RBI position. The 8th slot is not considered an RBI position either, yet you specifically mentioned possible Murton RBI opportunities as a reason for putting Murton 8th. Be a little more consisitent. Yes, I mentioned it as a benefit but not the purpose of him batting 8th. I think that Neifi is more likely to make the first out in an inning that starts Perez, Muron, and the pitcher. However, with Murton batting 8th there is a chance that he can get on base (walk or a hit) and or collect an RBI. The pitcher would be asked to sacrifice. No NL team's bottom of the order is stellar. You just ask that those guys work the count and try to get on base especially in front of the pitcher.