Teams often leave spring training with an odd assortment of players.
Fans are left wondering why a guy hitting .475 is sent to the minors in favor of another who's hitting .220. Or a young pitcher is sent down after striking out 25 batters in just 20 innings in favor of a veteran middle reliever with little left in the tank. There are a variety of reasons why teams make those kind of decisions. Sometimes it's to see how the players handle adversity, other times it's to see if the spring training performance was the real deal or just the result of a couple of good or bad outings. In addition, the front offices know that the mindset of the players is just different in spring training as everyone understands the spring standings don't really count.