I find it amusing that you accuse me of misunderstanding something when you can't do simple maths. I said that out of the five players he mentioned, two were out of favour (Dos Santos and Pienaar) and one was not a wide player at all (Van Der Vaart), leaving two natural wingers (Lennon and Bale).
Van Der Vaart playing on the wing should not have to be an option at all, considering his effectiveness in the centre and lack of it when shunted wide. Pienaar and Dos Santos really haven't performed to a high standard during the minutes they did get playing for Spurs, and thus we can likely safely say they'll be shipped out soon. Leaving Bale and Lennon as the only two senior wingers in the Spurs squad, with the possible exception of Danny Rose, who is being used at left-back now anyway. As such, Billy's original query made sense.