Complex sentence: Sheikh Mohammed Adam El-Sheikh preceded him between August 2003 and May 2005, leaving to become the executive director of the Fiqh Council of North America, an association of Islamic legal scholars.
Split into simpler sentences: Sheikh Mohammed Adam El-Sheikh preceded him between August 2003 and May 2005. The imam left to become the executive director of the Fiqh Council of North America, an association of Islamic legal scholars.