First things first, congrats for the posts/initiatives
For the purpose of discussing your points:
- Main team can send a maximum 3 youngsters (below 20yo) to their 2nd team to train/play
- Salary would either be paid: in full if on main team by main team; x% on main and 100-x% on 2nd team if on 2nd team
- Player is eligible to play for both teams, until it plays x games for one of the teams; if so, can't be moved again that season
(Optional) If the player "completes" a full season on the 2nd team, he cannot be sent back again if he played in the playoffs
(Optional) If the player "completes" a full season on the 1st team, he can be sent back again but not play in the playoffs for the 2nd team
Benefits sound good