He was his manager before so he knows all about Kroos, but I think he chose not to go for him because Van Gaal isn't somebody to just buy for the sake of it, he wants somebody who will suit the system. I know everyone hates speculation on how he will have us playing, but I'm pretty sure it's just going to be a 4-3-3, with a defensive midfielder, a box to box player, and an attacking midfielder in the midfield trio. We already have more then enough for the attacking player, so all things point to Van Gaal wanting the energetic box to box player, which isn't Kroos, or Fabregas for that matter. Strootman or Schweinsteiger, or Vidal, are players who Van Gaal probably wants for that spot, let's just hope we can get one of them in.