According to Chelsea legend Pat Nevin, youngsters struggle to make their mark in the first-team because of the quality required to shine at Stamford Bridge.
“There is a young lad called John McGinn playing now for Aston Villa who was bought from my ‘other’ favourite team, Hibernian, in the summer,” Nevin wrote in Chelsea’s official website.
“Now he is a good player and will get better because he is young but watching him against Mousa Dembele was painful as the Spurs man swatted his attentions effortlessly time and again.
“The kid didn’t stop trying but the gulf between a keen youngster coming through and a player who can hold down a place in the second best national team in the world was painfully clear to see.
“This is the reason why the long list of youngsters who have come through our Academy have a very small hit rate in terms of becoming regulars at the Bridge.
“There have been plenty of quality players produced but the standard you need to reach our senior side is way, way above mere quality.
“It has to be exceptional, in fact top international class.”