Coaches don't really coach kids techinque nowadays, too much emphasis is being put on being strong and athletic. A guy who is 6'2" and good in the air is more likely to make it than someone who's 5'5" and good technically, sad but true. I had a trial as a winger for Aston Villa's U16 team in 2004 when I was 15, they spotted me playing for Rhyl. The coach said I was great technically, but he had concerns with my height, in the end I was told I too short to ever make it as a pro