Here is what the Cards have on the books as far as longer term contracts:
Fowler
Wong
DeJong
Carlos Martinez
Fowler is the most expensive, but after 2020, this team will have almost nothing on the books. Which makes me think the big reason they went for Goldschmidt is because if this team treads water like they've done the past few years, then I think the ownership will flush away and start over.
Regardless, our 3 and 4 hole hitters are one year away from FA. They are going to need to spend big to keep both Goldschmidt and Ozuna.