Complex sentence: The season will be the first since the breakup of the former Big East Conference, which lasted in its original form from its creation in 1979 until July 2013, and the charter of the former Big East will still function, and will reside with the AAC.
Split into simpler sentences: The season will be the first since the breakup of the former Big East Conference, which lasted in its original form from its creation in 1979 until July 2013. However, the charter of the former Big East will still function, and will reside with the AAC.