You used Jeffress as an example of an inability to maintain talent or fix players. Jeffress got fewer strikeouts, walked more batters and gave up harder contact after leaving Milwaukee. He then lucked into better results despite that. Doesn't mean it was the wrong decision to let him go, they were right about him. Performance isn't the same thing as results; they are very closely linked, but in a huge-variance sport like Baseball it takes time for those two things to join up. The Brewers probably hadn't changed their evaluation of Brock Holt all that much from the time they signed him to when they released him. They know that a .136 BABIP isn't sustainable, and that given time and at bats his results will improve. But they also know that in a 60-game season they don't have the time for that if they want to make the playoffs. The Nationals picked him up and are a good illustration of the short-season issues. They started 19-31 last year and won the World Series. They had a similar record this year at 50 games, yet were close to being mathematically eliminated from the postseason by that point. It makes player evaluations very different. In a normal 162-game season Brock Holt would still be a Brewer (Or be given a longer leash at the very least), but in a short season where so many others were struggling too (If it's just one guy, you can "hide" him on the bench for a while) they felt they had to try something. The 80 wRC+ he put up on the Nationals is also only really good by comparison to the first half. The difference between him as National and as a Brewer is simply a matter of BABIP, again. He struck out a bit less as a National, but walked less. Plate discipline numbers are essentially the same. Yet, as so often happens in these cases, the balls bounced differently. So, at worst, if the balls would have bounced differently this year, Jeffress would have been similar to Josh Hader. I think in a worst case scenario, matching the output of one of your most reliable bullpen arms is something the Brewers would have preferred to have, rather than trotting out Feyereisen, Rasmussen, Knebel, Wahl, Grimm, etc. At the same time, if you're going to say that Jeffress was lucky this year, you have to point out that he was unlucky last year. GB% dropped to a career low with the Brewers, BABIP spiked, LOB% dropped to a career low with the Brewers, all while battling through a hip injury on his plant leg. And they could have had him for next to no money. Regarding Holt, after being let go 16 games into a 60 game season, they essentially gave his AB's to Jace Peterson. I could understand the trade off if they had someone waiting who had a track record of success at the major league level, or a prospect requiring a shot against better competition, but Peterson was neither of those. Punting on Holt essentially showed that the Brewers were waving the white flag on trying to fix things with him. Rather, they decided to throw more stuff against the wall, hoping something would stick.