That's twisting it though. Digne is an important factor in attack and he is naturally a more attacking left back than a defensive one. Asking him to stop attacking (removing his possibility if assisting which we know is one of his best qualities) appears nonsensical.
You (and others in support of benitez) keep saying he needs to bring players in to suit his style. I'm still unclear what style that is because we don't have a visible one currently, unless that is sitting back, riding our luck and hoping for one chance.
But, in the absence of him having been able to bring his own players, he needs to adapt to what he has. Players suit different styles, and expecting them to just slot into his style is madness, especially when it takes away the better part of their game.
Use Keane for example. He looked great at Burnley who play incredibly defensive. He has looked weaker when we have tried to be more expansive. But last year, when ancelotti went defensive, he was being raved about as our best defender again. As his strengths were being played to.
Until he can bring in his own players, surely a good manager would be able to be flexible and work with what he has got and get the most out of them?