Harlequins’ Marcus Smith orchestrates a new hammering for Northampton

• Harlequins 50-21 Northampton• 18-year-old fly-half shines against inept SaintsThe new year cannot come quick enough for Northampton, humiliated again on their second outing to Twickenham this season by a hot-stepping Harlequins, for whom the 18-year-old Marcus Smith excelled as conductor-in-chief.Smith had a hand in five of Quins’ seven tries and contributed 15 points with the boot. He was again named as an apprentice in Eddie Jones’s England squad on Friday but this was a masterful performance. Had he been wearing white he would not looked out of place. Related: Rejuvenated Saracens score s…