In an effort to preempt any Covid-related disruptions during this year's Six Nations, England boss Eddie Jones is trialling each of his coaches in the head role building up to the tournament.
England will raise the curtain on their Six Nations campaign with a trip to Murrayfield, where they'll face Scotland in a Calcutta Cup encounter on February 5.
The visitors have already suffered one virus-related setback after Harlequins prop Joe Marler tested positive for Covid.
