beckdawg
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I had a longer post than this typed up but I mean I'm not sure it's worth the effort. But I liked this bit so I'll say it. In 38.2 IP vs left handed batters, Peralta, Ramirez, Warren, Grimm and Strop gave up 37 runs of which 36 were ER for an 8.38 ERA. The difference between that and say a mediocre LH specialist with a 3.50 ERA is 15 more runs which would drop their overall reliever ERA from 3.83 overall to 3.34 which would be 7th best in the league.
Long story short, this belief that the cubs bullpen was bad to begin with is just unfounded. They were particularly bad at getting left handed batters out. If my math is right the cubs bullpen has thrown 172.2 innings vs RH and given up 66 runs or has a 3.44 ERA. Against LH, 108 IP and given up 53 runs or a 4.41 ERA. Those 5 guys above gave up 36 of the 53 runs meaning the rest of the cubs relievers had a 2.20 ERA vs LH. Other than Strop and Grimm, you're probably not going to see those guys on the playoff roster and now that they have Montgomery who is particularly decent at pitching to LH batters a lot of that blow is lessened.
So when I say I don't really see Chapman having that big of an impact, that's why. To start with he's going to close most likely and most of those innings that killed the cubs vs LH batters occurred in the 6th and 7th innings. Rondon/Chapman pitching instead of Strop in the 8th might help some but his .278 wOBA isn't actually that terrible against LH despite his 4.76 ERA vs LH this season. As an example, Lackey's wOBA vs LH is .297 and his ERA is 3.51 vs them. I just honestly believe if the cubs roll the dice with what they have now the difference wont be that noticeable assuming Montgomery is as advertised against LH. And even if he isn't, Matusz has pitched well and historically is quite tough vs LH batters.
Long story short, this belief that the cubs bullpen was bad to begin with is just unfounded. They were particularly bad at getting left handed batters out. If my math is right the cubs bullpen has thrown 172.2 innings vs RH and given up 66 runs or has a 3.44 ERA. Against LH, 108 IP and given up 53 runs or a 4.41 ERA. Those 5 guys above gave up 36 of the 53 runs meaning the rest of the cubs relievers had a 2.20 ERA vs LH. Other than Strop and Grimm, you're probably not going to see those guys on the playoff roster and now that they have Montgomery who is particularly decent at pitching to LH batters a lot of that blow is lessened.
So when I say I don't really see Chapman having that big of an impact, that's why. To start with he's going to close most likely and most of those innings that killed the cubs vs LH batters occurred in the 6th and 7th innings. Rondon/Chapman pitching instead of Strop in the 8th might help some but his .278 wOBA isn't actually that terrible against LH despite his 4.76 ERA vs LH this season. As an example, Lackey's wOBA vs LH is .297 and his ERA is 3.51 vs them. I just honestly believe if the cubs roll the dice with what they have now the difference wont be that noticeable assuming Montgomery is as advertised against LH. And even if he isn't, Matusz has pitched well and historically is quite tough vs LH batters.