He kept showing Nolito inside rather than on his left and he kept feeding the central players, his inability to handle things on his side (along with Felliani) meant Bailly had to vacate his space to engage higher up.
Compare that to an actual good performance which was Shaw completely shutting Sterling down dealing with those passes wingers latch onto inside the fb. Valencia was then horrendous with his delivery he doesn't aim his crosses he either just lofts it or hammers it. I judge players relative to the best about so when people say Valencia has been playing well I look at Lahm, Alaba, Felipe Luiz, Azpilicueta, Marcelo, Carvajal and have to disagree. He'll never be good enough for this club.