Complex sentence: Between December 2014 and September 2015, the Board of Governors explored a variety of possibilities for improving the structure of the academic leadership of the College, also hiring an outside consultant to examine the role of the Director of Studies.
Split into simpler sentences: Between December 2014 and September 2015, the Board of Governors explored a variety of possibilities for improving the structure of the academic leadership of the College. A consultant was hired to examine the role of the Director of Studies.