In a major recruiting coup for a program accustomed to such things, five-star big man Vernon Carey Jr. committed to Duke on Thursday. Announcing from his NSU University School in Fort Lauderdale, Carey retrieved a handkerchief from his jacket pocket, emblazoned with Duke’s insignia, and flashed it for ESPN’s cameras and those in attendance. Entering the day, Carey was generally believed to have whittled things down to Duke and Michigan State, with North Carolina his third choice. He told reporters he officially decided Thursday morning. Carey rated as the No. 2 player by a hair in the summer RSCI composite (which aggregates the rankings of major online recruiting websites) and will be an instant-impact player for the Blue Devils irrespective of where his final rank lies.