Amid all the excitement surrounding Manchester United’s more high-profile signings of the summer window, the Premier League giants are not only focused on the present. There has been a concerted effort to put the building blocks in place for a brighter future too, as emphasised by the sheer number of exciting teenage talents who can now call Carrington home. Samuel Lusale joins from Crystal Palace, Manchester United snapping up the twinkle-toed winger reportedly from under the noses of Borussia Dortmund, Arsenal and Chelsea. Sekou Kone, one of the brightest young midfielders to emerge out of A…