I see this notion all over the place and it always fails to recognize the role of manager beyond game time decision making. If horrible managers can find themselves in the postseason, why bother trying to quantify the credit a manager deserves? Perhaps the only way to truly discern the good from the bad is recognizing their ability to manage people off the field. Think of a baseball team as any other work environment. While a manager isn't going to write a report for an employee, they will have an affect on the quality of their work. Employees respond to the atmosphere of the work environment their manager provides. The healthier and more positive the environment, the better the work produced. Conversely, the more dysfunctional and negative the environment, the poorer the work. Baseball is no different. By all accounts, this is an area Maddon excels in and what separates him from the rest of the pack. I'm not sure how much I believe any of that. The people who say "happier employees mean better work" are usually employees wanting their bosses to do things for them. Which doesn't disqualify it from being true, but makes me wonder.