How can Nick Nurse, Sixers help Jared McCain out of his shooting slump?

Philadelphia 76ers rookie Jared McCain has been a true bright spot for the struggling Sixers this season, but after a fantastic month of November, his three-point shooting has taken a bit of a dive over the last three games. McCain is 2 for 21 from long distance over that three-game span and had his stretch of ten straight double-digit scoring games snapped on Saturday night in Philadelphia's win over the Detroit Pistons. 76ers head coach also brought McCain off the bench in favor of veteran Kelly Oubre against the Pistons. What can Nurse and the Sixers do to help guide their young guard through his first rough spot?