Like much else, faculty careers are often divided into three phases: the beginning, the middle, and the end. New faculty have been studied in some detail—probably because of the great influx of them—and likewise, so have senior faculty, although they have been studied less than new faculty. But what about that expanse in the middle? Researchers Baldwin, Lunceford, and Vanderlinden (reference below) quote sources describing this career stage as “perhaps the least studied and most ill-defined period in life.”