Yadiel, Espino, Ross, kieboom, Barrera for Matt Olson and an arb eligible reliever.
The As are losing canha, Harrison, and Gomes this offseason so this would provide their replacements along with adding starters as bassit and manaea each are free agents after next season. This package is full of major league ready controllable pieces who have shown they can play in the league. I know y’all will think it’s unrealistic but it seems like a package that would be appealing to the As
Some of those guys might be interesting to the A's, but not in exchange for Olson. Ross is of interest to nobody in trade, because he's hurt and likely to be non-tendered. The only two guys in that package who are healthy and have proven useful in any reasonable sample size are in their mid-30s.
In many ways, Olson is similar in value to some of the guys you wanted to trade spare parts and lottery tickets for last week. He's cheap, fairly young, controllable for multiple years, and has a track record of production. If they wanted to trade him, they'd get more than that. A LOT more than that. You seem to ignore that there are - like with Polanco and Marte - at least a dozen teams who would be willing to offer more for Olson, especially if the NL puts in the DH. Hell, the A's could probably get better packages than that from three teams in their own division.