Yep, I think Ange values speed down the sidelines, even in an possession system. The same stuff Poch used to do with Walker and Rose, Ange wants his wingers to do (and then suddenly the backs are in the box as forwards, as we saw with Porro last PL game).He may or may not work out, but you have to back your manager.
Johnson is a burner down the wing, that's one trait we know he has. I kinda just want to have a fun Spurs team this year after Jose and Conte, so if it's a ton of speed and youngsters, so be it.