They have the worst projected offense in the league by far (4.10 runs per game, 2nd worst is the Pirates at 4.32). I don't see a way in which they don't finish as one of the worst teams in the league. And they are expected to sell Manaea and Montas so there goes the rest of their pitching staff.
If they get lucky, they might be able to finish in the upper 70's in win totals.
It's a shame, because the previous Oakland team was really fun. Probably one of my most watched teams last year. The fans in Oakland deserve better.