Duran can be a wingnut, but continues to mature as a professional. In a competitive industry like sports, it's a given you have to be cocky to be good. But you also don't trade a star MLB position player who can impact every game for a starter who might pitch once a week.
Duran isn't Luis Arraez, the best contact hitter in baseball, who has been dealt twice the past two years. He's the first 10-20-30-40 (3B, HR, SB, 2B) player in history...