Complex sentence: The Millers kicked off the 2016--17 season with a 4--3 win over Cammell Laird under manager Garry Brown, however, Brown resigned in September 2016 after a poor run of results.
Split into simpler sentences: The Millers kicked off the 2016--17 season with a 4--3 win over Cammell Laird under manager Garry Brown. However, Brown resigned in September 2016 after a poor run of results.