Ruben Amorim has a big job on his hands at Manchester United if Kieran McKenna's experiences are anything to go off. After a 12-year youth career with Enniskillen Town, Ballinamallard United and Spurs , 38-year-old McKenna stepped into the world of coaching, taking the reins of Tottenham's U18s side between 2015 and 2016. He then made the move to United to take up a role as the club's U18s manager, helping guide the club to the Premier League Northern Division title in his second season. He