Now the dust has settled from the FA Cup final triumph for Manchester United, there’s been an interesting thing noticed. Saturday saw Manchester United lift the FA Cup with a 2-1 win over Manchester City. In the win, the teenage duo of Alejandro Garnacho and Kobbie Mainoo shone brightly, scoring a goal each to shock the nation. It wasn’t the first or last time we’ll see these exciting academy graduates steal the spotlight from their more senior teammates. The pair of 19-year-olds have been two of the best players in the team this season under the tutelage of Erik ten Hag, who they both broke o…