no; it won't burn out. There's no such thing.
But it increases the possibility of injury and overtrained.
For example, if he plays as a first team, no injury and no complain of overtraining = perfect :D
Overtrain is like... you tell him to learn some move "just for" being in the first team...
Stars of CA tells you "at last" what he will be.
Sometimes, the attributes are high... (or look moderate already) when he is 14. But he never get betters (or improve much) if he is rated only 1 star (typically).
so look at "stars" for probability of development; but look at "attributes" for...
Set the defensive line as DEEP (one of the deepest but not deepest)
then set the role appropriately. Don't use "attack" duty much.
I use 3 Def (including GK)- 7 Support and 1 Attack.
ps. I beat the guy above for 1 goal loss with 1 fewer match played!!
Use Wickham as Poacher partnered with Rooney.
Don't you young and lenon. They are not a good player.
I suggest you don't use "winger" tactic for England.
They lack "wide" player. Tighten up the midfield together. have DM, MC, AMC :D
This is how I did
Hart
Walker
Shawcross
Cahill
Spence...