To me, the "buy" or "sell" discussion hinges on playoff odds. Loitering in the 2% range isn't enough to push in chips, but if you are trading an anonymous lower level pitching prospect for a veteran rental, is that really going to set back your rebuild?
There's also the "Reconfigure for 2024" trades where you buy low on a guy or two who could contribute next year.
Finally, 40 man roster considerations are abound at the deadline as teams start to look at potential crunches this offseason. The Tigers are in a spot where they can add, and might be able to get a rule 5 eligible guy or two from a team facing a crunch. A simulation exercise I did last week suggests the Tigers have plenty of room to spare.