Ever since it was announced back in May that Chicago-based DTZ Group would acquire brokerage behemoth Cushman & Wakefield for $2 billion, there has been intense speculation about what that would mean for the overlap of nearly 100 brokers and staff members in the Triangle affiliated with each of the firms. Some joined the newly merged Cushman & Wakefield office in Morrisville, while others went to another competitor firm that specializes in commercial real estate capital markets. The brokers and…