Complex sentence: The team rebounded in 1987--1988, but when it returned to its losing ways, Dalton's position was weakened and after a poor 1991 season, he was replaced as general manager by Sal Bando.
Split into simpler sentences: The team rebounded in and, but when it returned to its losing ways, Dalton's position was weakened. After a poor season, he was replaced as general manager by Sal Bando.