Why did Bob Douglas rename the Spartan Braves the Renaissance Big Five?

Bob Douglas renamed his team from the Spartan Braves to the Renaissance Big Five as part of a business partnership with William Roach, who had established the Renaissance Casino and Ballroom in Harlem.1

By adopting the name of the facility, Douglas provided advertising for the venue, which included a casino, a ballroom, a theatre, and a department store. In exchange, Douglas secured essential practice and playing space at the location, allowing his team to host games and establish a home court where they could compete against the best teams in basketball.1