What happens when an arena’s outdated status prompts whispers about Milwaukee’s NBA future? Well, the $250 million needed to modernize the Bradley Center wasn’t in city coffers. So a deal was struck for BMO Harris, which recently bought local bank M&I, to also buy arena naming rights. The bank’s paying $1 million-plus annually as part of a six-year, $18 million multicompany sponsorship deal. The arrangement will help keep the BMO Harris Bradley Center viable while talks of a new home for the Bucks and other teams continue. Whew.