Complex sentence: Under Culverhouse, the Bucs were one of the NFL's more profitable teams during the 1980s; however, this was largely because he kept the payroll among the lowest in the league, hampering their ability to sign quality players.
Split into simpler sentences: Under Culverhouse, the Bucs were one of the NFL's more profitable teams during the 1980s. However, this was largely because he kept the payroll among the lowest in the league, hampering their ability to sign quality players.