Complex sentence: Following the resignation of Robert Freeman in 1996, James Undercofler was then appointed Director and Dean of the Eastman School, and held that position until he resigned in 2006 to accept the position of C.E.O. and President of the Philadelphia Orchestra.
Split into simpler sentences: Following the resignation of Robert Freeman in 1996, James Undercofler was then appointed Director and Dean of the Eastman School. Undercofler held this position until resigning in 2006 to accept the position of C.E.O. and President of the Philadelphia Orchestra.