Complex sentence: Bello left NFLP on Labor Day in 1993 amid controversy--he was forced out by then-NFL Commissioner Paul Tagliabue for a conflict of interest stemming from an investment in a printing facility that produced NFL ProSet trading cards.
Split into simpler sentences: Bello left NFLP on Labor Day in 1993 amid controversy. He was forced out by then-NFL Commissioner Paul Tagliabue for a conflict of interest stemming from an investment in a printing facility that produced NFL ProSet trading cards.