Wayne Pivac's struggling Wales are caught between two stools | Paul Rees

The head coach was brought in to add flair but has failed to compensate for a loss of physical power in the sideIt is exactly a year since Wayne Pivac took over from Warren Gatland as Wales head coach and he needs a result. He was brought in to add adventure to Wales’s game, but the main difference so far has been a loosening of the grip the Six Nations champions were able to exert on opponents physically.Wales are caught between the old and the new. It was exemplified in Paris last weekend when they came second in areas where they had been dominant before, in the air and in contact, and a cou…