Complex sentence: The 2007 parade had a professional production team, Charlotte Arrangements, whose president Clarke Allen expected a parade much like the Macy's Thanksgiving Day Parade, though light poles would prevent the large balloons.
Split into simpler sentences: The 2007 parade had a professional production team, Charlotte Arrangements. The President of Charlotte Arrangements, Clarke Allen, expected a parade much like the Macy's Thanksgiving Day Parade; however, light poles prevented the large balloons.