They literally have one of the best starting staffs in baseball.. How is this not "strong": Urias, Kershaw, Gonsolin, May, and then like 3 top 100 SP that are all knocking on the door and ready for MLB. They'll be just fine with some cheapish depth addition. There is no need to get below the tax because of this "not strong" staff..
EDIT: Yes, they could use Giolito or anyone.. But to insinuate they have a weak staff is asinine.