That's the problem though, Bri. MLB teams are only 25 players, and only 12 or 13 of then apply since the rest are pitchers. You make these broad statements about "25 players," but when an actual concrete example of one of them is examined, you tell us "but not Adrianza." I think your idea misses a couple important points. Generally, players improve by playing. However, in most cases you can use history to tell you how much improvement you might expect. When a player cant regularly catch up to MLB fastballs, no amount of coaching, Or playing time is going to improve him. Meanwhile, wasting playing time on him means you are depriving the better player of playing time to improve HIS game. Every game you give Adrainza in 2017 and 2018 lessens the chance Polanco breaks out in 2019. Adrianza isnt here to play every day. He's with the Twins because he's the best suited player they have to back up several infield positions. Potentially better players exist in the minors, but they stay there so they can play every day. Adrianza doesn't steal playing time from anyone. Unless you believe Adrianza is better, and should play every day, it doesnt matter how he does in a single game, or a week of playing to cover an injury. Same for every player, in every team. The Dodgers aren't giving lesser players extended aying time either. They just have better players, including reserves, but those reserves are still reserves.