Played in the same boys club as Stuart Duff, he was some player at juvenile level. A couple of others in my team did sign professional but didn't quite make it. Paul Jarvie went to to the Dabs as a keeper, played a few 1st team games but ended up getting binned by Ian McCall. Played doon in England lower league but ended up at Peterhead for a couple of years.
Also a lad called Martin Wood, signed for Rothes in the Highland League at 16, had a great season and Motherwell bought him a year later. Played under I think it was Billy Davies, then Eric Black.
Again he played a few 1st team games but was released when Motherwell went into administration.

Some of the best players I player with and against never made it because they didnt have the discipline. By 15/16 they're starting drinking and missing games etc.