PHOTO: Nolan Smith. By TOM SHANAHANNormally a full season plays out – if not more – for those outside the team to observe what the head coach saw in hiring his latest assistant, but that’s not the case with Duke boss Mike Krzyzewski promoting Nolan Smith.Smith’s behind-the-scenes work last season with freshman Mark Williams not only drew praise from Coach K at mid-season, the results were as obvious as a 7-footer on the court.After Williams, a 7-0, 245-pounder,…