No, not always. Hiura is still technically a prospect. Would you trade him for a proven guy just for the sake of having the proven guy? What if we had traded Woodruff for Machado last year? Where would we be now? The problem with your approach is two-fold. First, every great player was once a prospect. Every single one. You never find out which ones will make it if you never give them a chance. Imagine if the Dodgers had traded Cody Bellinger at the deadline for some immediate help 3 years ago because hey, he was just a prospect, go get some proven talent, right? The other problem is that if you are constantly using your prospects as trade chips you will eventually run out of them so you can't be reckless about using them that way. I see your point...but you also can't "run scared" because you THINK someone might be the next Ken Griffey Jr, or Nolan Ryan. Far more prospects that were once thought to be really good, have washed out, then have become the next Ken Griffey jr.Heck, look at the Brewers from years past for proof..Matt LaPorta(I remember people dreading giving him up in the CC deal), Nick Nuegebauer, Joey Meyer etc, the list is a long one. I still remember vividly people here lamenting giving up Lewis Brinson in the Yelich deal. That was trading a top prospect(Brinson), for a proven major leaguer (Yelich), would any of us say that hasn't worked out great?? That's what you do, find proven talent that you feel really good about, and deal prospects for them, and don't regret it. In regards to Syndergaard, I'd be willing to bet MASSIVE amounts of money, that he will have a better major league career when it's all said and done than Burnes or Peralta..Hence why I have no problems giving up both for him. You aren't giving up anyone that vital to this years team and getting a TOR starter(for another 2.5 years at that) which COULD be all that's needed to get them to the World Series, or for sure get them closer. That allows you to still have minor league prospects to go out and get even more help for this years team.