Change Remains The Constant in Yorkville.   Impeccably dressed in a crisp black blazer and plaid Moschino pocket square, with a vodka martini in hand, designer William MacDonald surveys the early evening streetscape at Bay & Yorkville. His perch is the plush dbar in the Four Seasons Hotel. It's a scene MacDonald has watched for decades since first venturing into Yorkville from his home in the Beach at an impressionable age of 16. "We'd go to the Ralph Lauren store at... [read more]