McKenna's breakthrough, how much of it was him forcing his way into the starting line up on the back of good showings in the U21's and in training and how much of it was an aimless punt by McInnes after a 3 game winless run culminating by an absolute roasting by Motherwell?
All credit to McKenna for taking his chance, but I'm not sure him getting the chance in the first place was completely down to a natural progression of his talent rather than the manager running out of ideas. If we weren't ripped to shreds by Louis Moult in that one game, I'm not sure McKenna would have even stepped on the pitch for us this season.
There's an argument for giving young players a run in the first team, occasionally you'll get one who looked ordinary in the second string becoming a standout in the first team.
Certainly more to gain from trying that than bringing in fringe players from lower league English teams then being obliged to give them game time.