Complex sentence: In 1986--87, the Thrillers moved back to the Bayfront Center and had another outstanding season, albeit with a new owner, John Tuschuman, head of Fidelity Management Company, which owned and operated residential communities.
Split into simpler sentences: In 1986--87, the Thrillers moved back to the Bayfront Center and had another outstanding season. The Thrillers were owned by John Tuchman, owner of Fidelity Management Company which owned and operated residential communities.