Complex sentence: The Dallas Mavericks are an example of an NBA team that regularly uses zone defenses; during the 2011 Playoffs, their zone defense was credited with slowing down offenses, forcing opposing players to recognize which defense they were playing.
Split into simpler sentences: The Dallas Mavericks are an example of an NBA team that regularly uses zone defenses. During the 2011 Playoffs, their zone defense was credited with slowing down offenses, forcing opposing players to determine which defense they were playing.