Most guys I've mentioned have either been Top 100 prospects or top organizational prospects too. They have had prospect pedigree and flashes of success in the minors as well. Are they going to become Bautista or Encarnacion? Statistically unlikely, but even if they become 2-3 WAR regulars and are producing that much when Vlad and Bo are up, that would be a big success.
Also, how much high impact talent can you add when your main trade pieces are a 36 year old Russell Martin, a month of an injured Josh Donaldson, half a season of JA Happ, an Osuna who was charged with serious domestic assault, half a season of Steve Pearce etc. The real test is going to be what comes back in trades for Marcus Stroman, Aaron Sanchez, Ken Giles etc. We've almost never been trading from a position of strength thus far.