We seem unable to progress players regularly from the u18s to first team level. If we can't do that after winning the youth double last season, then it does seem a poor return. Several will make it in the EFL at different levels, but if we undeniably had the best team in that age group I'd be expecting a bit more.
It could just be a perception, but youth players come through more readily at other big clubs like Man City, Man Utd, Liverpool and Arsenal.
I think Bogarde is the only one in the current squad who has progressed recently.