England manager Roy Hodgson has claimed that "inexperience or a lack of quality" may be his side's undoing at Euro 2016.
The Three Lions qualified for the finals with a 100% record and beat hosts France 2-0 at Wembley on Tuesday, with a side boasting six players aged under 23.
"You don't turn a guy who has played six or seven Premier League games and once for England into a Frank Lampard or Steven Gerrard," Hodgson told BBC Sport.
"I believe in the players and, given the opportunities, can become a good team but we are young, we are inexperienced - nothing is going to change that.
"It's still six or seven months away and I'm optimistic, positive and hopeful. This group of players won't let anyone down in terms of their attitude and desire. If they do fail it might just be because of inexperience or a lack of quality."
England have only lost once in 16 matches since coming bottom of their group at the 2014 World Cup in Brazil.