The Griezmann situation is an odd one. It sounds like he really cares about Atletico and doesn't want to weaken them by leaving, but realistically there's no way Atletico can challenge Barca and Real next season now that the other two are free to strengthen and they can't. I don't buy the story coming out of United that they want to find a more direct replacement for Ibra, they've known the situation with Ibra for weeks now, it wouldn't make sense for them to suddenly change their mind on Griezmann. My thinking is that maybe Griezmann is less sure about leaving and/or Atletico are demanding too much of the fee upfront and United are publicly distancing themselves to avoid embarrassment.
According to the BBC sport article I read today United think they already have enough quality at the number ten position. I completely disagree with that, I can't see how United can think they can challenge for the PL and CL with the current quality in those attacking positions. Lingard is currently pretty average with some potential for improvement, Mkhi was very up and down last season, Mata is clinical and scores important goals but has weaknesses, and Martial is more of a striker/winger than a number ten.