Three more presentations from SABR 39 are online this week:

• Strategy, Fatigue, or Something Else? The effect of defensive position on offensive performance, presented by Pat Kilgo (multiple authors).
• Doubled Up: The Mysterious Illness that Almost Ended George Sisler’s Hall-of-Fame Career. presented by Jim Provenzale (multiple authors).
• Mis-Management 101: The American League Expansion of 1961 by Andy McCue.