Warren Gatland to stand down from Wales and focus fully on Lions tour

• Gatland to be named on Wednesday for tour to New Zealand• Rob Howley expected to take over as temporary coach of WalesWarren Gatland will start his role as the 2017 British and Irish Lions head coach with immediate effect once he is officially installed in Edinburgh on Wednesday. Gatland took charge of two of Wales’s autumn Tests before heading up the successful 2013 tour to Australia but this time around will be pouring all his energies into defeating the All Blacks next summer.Gatland’s assistant coaches for the New Zealand tour are not due to be confirmed until December but Wales are pois…