Complex sentence: He returned to the Steel for the 2008-09 season and saw his numbers improve greatly, as Moore had 14 goals and 39 points in 57 games, however, Chicago did not make the playoffs.
Split into simpler sentences: He returned to the Steel for the 2008--09 season and saw his numbers improve greatly, as Moore had 14 goals and 39 points in 57 games. Chicago, however, Chicago did not make the playoffs.