Whatever the reason for Brenda McKenzie's decision to leave as head of the Baltimore Development Corporation after just two years, Mayor Stephanie Rawlings-Blake made a shrewd move by recruiting City Councilman William H. Cole IV to take her place. Ms. McKenzie never fully gelled with the downtown business community that has traditionally been the BDC's chief constituency, but Mr. Cole, who has represented the central business district for two terms on the council, has immediate credibility in that area. His presence will instantly calm any tensions, and he will have some standing to referee the ongoing tug-of-war between Baltimore's traditional downtown and the burgeoning Harbor East...