Yes but now you are talking about such a tiny minority of teams. There are how many teams in the USA? 3,500? And I imagine less than 12 actually have a player on the senior national team. I doubt all 12 actually drafted the guy. I know a player who has his own draft pick in the Australian senior team and he gets crazy merchandising. So yes there is already a huge bonus for those lucky few teams but I am a little more concerned with helping the other 3,500.
You don't think this would change how people play the game? You think I have kept 9 of my own draftees because they're awesome players?
Nope, and I only plan to train them for the merch kickbacks. If you want a discount for training the players you drafted, then
train the players you drafted. The mechanics are already in place, we're not exactly curing cancer here.