My view - Apart from a very few exceptional talents, young players need to be carefully managed.
By all means give them early opportunity but manage their game time carefully.
Couto is one example. Clearly a talented player going forward but still lacking in the defensive side of his game. On at least one occasion yesterday Piergianni had to remind Couto of his positioning and several other times Benny was just not strong enough to hold off the attacker.
Hart should start on Saturday.
Then there is Harry Vaughan - huge talent but is still a schoolboy in stature. He will get stronger and fitter and has all the attributes to play at a higher level. Though good when driving forward, he was caught in possession a number of times and should have been substituted far earlier than he was.
Play Whelan and Bowden on Saturday and bring Harry on if needed.