The best teams are invariably those that have the best fielders, and not just the best batters or pitchers. It is the fielders who balance out a team and help overcome all the hurdles they may face during a game. Training drills improve technique, stamina, flexibility, strength, and boost the confidence of a player. The key here is to keep one's eyes on the ball and knowing what you're going to do beforehand. The more you practice, the better you will get at it.