I think the chances of Tristan Peters having any sort of decent major league career are maybe 15-20%. That said, the Brewers don't make this deal unless they are confident in Trevor Rosenthal pitching meaningful bullpen innings for this team down the stretch and in the playoffs this season. This is certainly an odd move on paper, but with the way this team has managed to pull high-end relief seemingly out of nowhere, I'll give them the benefit of the doubt right now.