I think there's an obvious solution here, make Hader the primary closer. He has been the most dominant reliever all year. Also, I fear they're not going to use Soria correctly. He will be just one more arm to add in a game, shortening the outings of others. In other words, if they have a game they would have used Burnes, Jeffress, Knebel they'll throw Soria out there too just because they have him. No matter how good any of these guys are, the more relievers you use in a close game, the more likely one of them blows up. For example, Burnes had things under control last night, pulled after 2/3 inning. I get it was 2-2 at the time, lefty coming up, but it was only the 6th inning. Let these guys roll if they're pitching well! Try to get through every game with one less pitcher and you'll keep everyone fresher that way too.