IMO, we'd absolutely have a chance at a playoff spot with the aforementioned player combos. Of course, things would need to break in the right direction (like usual), e.g. Story staying healthy, one or more prospect playing well, Houck showing last year was no fluke...
You add Soto, Story, and one or 2 pitchers (Fried and Crochet for example) along with some pen help, and it would be hard not to be excited for next year.
Certainly not a team that should be throwing in the towel before the season opens