Don't be an idiot, man! Of course a good attacking LB would contribute and make our attack stronger down that side, as well as playing a better LW player would. He's OK at defending some of the time, but let's not kid ourselves that he's good at it. He gets skinned so often. For now he is probably the best option unless we play Clark there at times. And until Lazaar adapts and settles down.
You probably meant vs Haidara, I don't know. It's just that you always defend Dummett and you seem to like him, while other players get slayed no matter what they do. For example Gouffran is a better player than Dummett. And I don't rate Gouffran either..