I'll get hate mail for this but the answers are too easy. If you want to differentiate your team from everyone else, have outstanding infield corners. Virtually everyone will try to have the proper SS/2B/CF in the lineup. However, having the best 1B/3B will help in almost as many ways and is not nearly as common. The 1st Baseman touches the ball more than the SS and 2B and, with awesome range, can be a difference maker. To a lesser extent but similar, a 3B with superior range and a superior arm can shut down lefties.