Let’s just say that I feel more comfortable with Hader coming in with a 3 run cushion than bringing in a lesser pitcher who has to face at least 3 batters with a 4 run lead. If the lesser pitcher can’t get anyone out like Perdomo the other day, you end up bringing in Hader with much less of a cushion, in that case against a powerful offense. And not using your best arm has a lot less value when he hasn’t pitched in 3 days, and the team only has two more games before an off day. I strike the balance in favor of going for the win when you have a good chance instead of saving the ace reliever for a future chance that might not be coming for several days. As it works out Hader was able to finish this one up without having to deal with the stress of facing the tying run. Perfect. And he should be ready to go tomorrow if the opportunity presents itself. Hope that explains my thinking. If you disagree with it fine.