Complex sentence: On April 28,2009, Mayor Bloomberg announced Wierson was stepping down as CEO of NYC Media Group, saying Over the past seven years, Arick Wierson and his team transformed NYC TV into one of the nation's best television stations.
Split into simpler sentences: On April 28,2009, Mayor Bloomberg announced Wierson was stepping down as CEO of NYC Media Group. The Mayor lauded Wierson's service to him stating, Over the past seven years, Arick Wierson and his team transformed NYC TV into one of the nation's best television stations.