It can be extremely difficult to impartially assess the work of a manager in a season. The failures rage in our heads for months if not years. Bullpen decisions that blow up, starters left in too long, or pulled too soon, the poor use of pinch-hitters, too many bunts, not enough bunts, odd lineup constructions...all these things stand out to us vividly. Meanwhile, far too often decisions that work out seem obvious after the fact and requiring no credit. While people disagree constantly on what makes a good manager, it's often difficult at season's end to recognize patterns in how a manager handles, or doesn't handle in some cases, his team.