I don't like run expectancy charts because using the average of thousands of situations to describe the likely outcome of a specific situation doesn't seem to me very helpful, or very accurate. By using thousands of situations, you have described the perfectly average pitcher, pitching to the perfectly average hitter, in a perfectly average inning, with perfectly average runners, in perfectly average weather....etc etc etc. A specific situation isn't anything like that. Shane Robinson against LaTroy Hawkins, two on none out, ninth inning, isn't anything like Miguel Cabrera against a tiring Tommy Milone, 6th inning, which isn't anything like Eric Fryer against Max Scherzer, first inning, .... I shouldn't have even brought it up, because using run expectancy charts to dictate strategy is not smart, IMO.