Complex sentence: In early November 2012 McGwire rejected a contract extension to return as Cardinals hitting coach for the 2013 season, instead accepting an offer to fill the same position for the Los Angeles Dodgers, in order to be closer to his wife and five children.
Split into simpler sentences: In early November, 2012, McGwire rejected a contract extension to return as Cardinals hitting coach for the 2013 season. Instead, he accepted an offer for the same position with the Los Angeles Dodgers, in order to be closer to his wife and five children.