Today’s fluff was considering downing tools After being handsomely turned over by Hull City on Thursday night, it was back to the drawing board for Manchester United and José Mourinho. The whiteboard already has one name, in capital letters, virtually engraved in permanent marker. That of Antoine Griezmann , with Manchester United hopeful that Paul Pogba’s hearty relationship with a man he spent the whole of July with last summer, can persuade the…