I'm generally with you, Mike. I look at it this way...
1. The playoffs have tiers. The Yankees and Astros are pretty much locked into the first-round byes. Then there's the Twins and 5-7 other teams who will fight for the remaining spots, one of which will be the Central champ. Realistically, I think the Twins will be the 3 seed (by winning the division) or the 6th seed (last wild card) if they make it. The difference in that seeding isn't worth going whole hog about, and at this point, the difference in team quality from the 3-6 seeds isn't such that one acquisition is going to make any of those teams a clear standout.
2. I still generally like the lineup. Either injuries will keep it from making the playoffs (and trades won't redeem that) or it will be a solid lineup. The one exception is catcher, with Jeffers' injury. I'd consider pursuing a Danny Jansen from Toronto, which also has Alejandro Kirk and Gabriel Morales, neither of whom they'll likely trade. (And if they would trade the latter, I'm definitely in.)
3. Realistically, it's hard to think of any starting pitcher who instantly improves the team to the level of being a clear division favorite or being competitive with NYY/Hou. With starters, the language is "controllable," which translates as "expensive." The language is also "sustainable," which translates as "now and in the future." Unlike previous years, the team does have a good start for next year's rotation -- Gray, Maeda and Ryan to begin with, plus Paddack, Smeltzer, Ober, Winder and Dobnak. In theory, add Bundy and/or Archer, thanks to options. Adding Montas is another arrow in the quiver, but I think adding a starter of that nature in the offseason is more feasible, both in availability and cost.
4. Which leaves the bullpen. Right now, the guys above 100 in ERA+ are Duran, Jax, Cotton, Moran, and Magill, with Thielbar hopefully back soon. I'm not fully out on Pagan, Duffey and Smith, and anything from Maeda/Alcala is bonus. It's just that right now, the rotation not going deep in games means lots of bullpen usage, and there aren't enough arms available to use the St. Paul Shuttle effectively. So do the minor stuff -- trade for guys that can primarily be had with lottery tickets. My first choice is David Robertson, a guy who can be slotted in as Closer Option 1 (including on back-to-back days), shifting Duran to Closer Option 1a, and shifting everyone else to "situational high/low level, according to how they're rolling, but with no sniffing of the ninth." I'd be glad to have a second reliever as well, though if there's a sense of Maeda being back soon, that softens the need. I actually like Fulmer and Givens, but to me they are guys like Pagan/Duffey/Smith -- guys with some past success but not enough to be consistently relied on.