This is an easy answer due to who it includes. You stick with Arcia's defense and weak bat. Reason being he can be batted 8th or even 9th. Andujar is not a top of the order bat. So he's going to bat 5th or 6th maybe even 7th since he's returning from injury and not proven that he deserves a top 6 slot in the batting order. So his weak defense that is on display for 9Innings a game vs Arcia who provides the defense 9innings in a game and bottom of the batting order hidden offense. I think if this were a Trout with his immense Offense and he came with Andujar's defense you are going to choose Trout becase he can bat 1st or 2nd and provide that positive far more often. Essentially it's something like batting: 1st sees 750 PAs 3rd sees 716 PAs 5th sees 684 PAs 7th sees 647 PAs 8th sees 627 PAs 9th sees 608 PAs That's about 18% less than 1st for an 8th in order bat. At 5 it's about 9% less. You can't hide him on defense that due to age likely worsens, whereas Arcia due to age can improve on his batting. You would have to think Andujar has a Lux type of ceiling and that is hard to do when he's a .736OPS career minor league hitter with .866 at AAA. I mean it is awful to dream on Andujar who is a DH only player moving forward in return on a Hader trade. How about Houston. Ask for Forrest Whitley, Cionel Perez, Abraham Toro, and Jordan Brewer as a throw in. That is #1, former top 10, #5, and the throw in since he's a "Brewer" actually interesting has a tie to the Badgers as a potential recruit. this sounds like a Monte Harrison type player needing lots of baseball experience. Toro is a switch hitter 3b/1b only 22. Perez is their #5 prospect of 2018 who starts done in the minors, but has pitched (poorly) as a brief RP for Houston thus far having lost his prospect status. 23 yrs old and Lefty, kinda a replacement for Hader in a couple seasons? but maybe he can be a starter too. Whitley is a guy dreamed as a #1 starter and had a poor season in 2019 reducing some of that shine. You know how a few of these have gone, Lucas Giolito/Tyler Glasnow. Live up to that #1 status and it's a steal for Milwaukee. Why would Houston do this trade? Lost Will Harris, Roberto Osuna has 2 years left on contract. Whitley may never have this kind of value as he does still. Perez/Toro are lower in their pecking order. Fans can be happy that they traded back for Hader. This is an interesting suggestion, well done. Whitley of course has the upside of a future Cy Young type starter, but had a pretty poor 2019 by his lofty standards. I think this is much closer to realistic value for Hader than anything the Yankees would offer, and would love to see Whitley as a return, though it would be a significant gamble. I would way rather do this than any trade centered around Andujar and overhyped Yankees garbage.