Using empty B teams to develop promising staff members

[AntSou]

I have an empty under 19 B team which has no use and thus no staff members in it.

I was wondering if anyone has attempted using such teams to nurture retiring players with good staff attributes and keep them around. Apart from the roleplaying aspect, I have players with good basic staff attributes (high discipline, motivation and determination) who will clearly become good coaches once they start getting their badges, but who aren't yet good enough to take a coach spot in my team. They also often won't have a good "working with youngsters" attribute, so I can't let them train the U19s.

Thoughts?