I prefer offered a quantifiable perspective. I always try to consider qualitative data, as well, whenever possible... however, there are effects beyond what can be measured and/or observed: a bad E extends the inning, and costs a pitcher X more throws, and we may see the guy grimace, stomp around the mound, swear into his glove, and maybe bounce or heave one into the backstop. But what about the pitcher who keeps a straight face...
... how is he really feeling inside? Is he determined to bail out or blame his teammate? Same with the other players on the field or in the dugout; yes, they're professionals, but they're also young men with egos...
Baseball is a unique team sport: the sum deeds of isolated individuals.