I always have a hard time buying into the assumption that the pitcher throws the same number of meat balls, the same locations, same velocity, same movement, pitch after pitch, game after game, to completely chalk it up to luck. Imo the point on 'luck' is not that every pitcher makes the same/similar mistakes over the course of the season... it's that pitchers' stats are heavily influenced by elements outside of his control: fielders, defensive alignment, umpires' calls (balls-&-strikes/basepaths/field), batters, coaches, etc. I know Ennder's example here focused on 'the meatball', but it was (imo) just to address a specific point/question. "Luck" doesn't necessarily inherently mean 'good' or 'bad' -- to me, it's just another way to describe the random variance that occurs every season.