Draft Day is an above-average entry in the field, and a predictably proficient a piece of popcorn entertainment. While some the broad strokes of the story may be fairly easy to call out fairly early on, it packs in enough "what's gonna happen?" suspense to make the eventual third act pay off worth hanging in there for for.
Giving the proceedings far more credibility than they really deserve is Costner, effortlessly cool, and clearly having fun with his new action hero configuration. Over the years, I've seen Kevin Costner be pretty good in fairly mediocre movies, and fairly mediocre in pretty good movies. 3 Days to Kill is the former.