On the topic of bullpen management, I watched last night's game on MLB Network with Costas and Jim Kaat. Kimbrel was warming up for the 9th and then Boyer joined him as the Sox were rallying, and then Kimbrel sat down when the Sox made it 9-4. Kaat made an excellent point about why managers will often bring in the closer in those situations even if the team does score some insurance runs. He pointed out that if Boyer gets in trouble, Kimbrel has to get up and warm up all over again, which takes some extra toll on his arm.