That is ridiculous. Why would want to offer our players up for the sake of the game? It sounds selfish, but fair. In real life, you get the say if a player may or may not play in the NT.
First of all, it's not for the sake of the game. It's for the sake of the enjoyment of other users. What you're suggesting is hard-coding a sabotage tool -- I buy the strongest player on Bulgaria's rival teams, and pull him from the national squad. Perfectly legal. Go me!
And no, in real life you don't get a say on whether a player may or may not play in the NT. In most competitive sports, national federations are mandated by the respective international confederation to release players for NT games.
So you are saying, that people should treat a player being in the NT a bad thing. Therefor resell them and replace them with worse players that are not in the NT.
And once they get selected for the NT, i should replace them again. Why should the NT result in such a troublesome routine?
You are the one suggesting that you have a problem with your player being on a NT, not _people_. This does not come free of benefit nor free of risk. If you are not satisfied with the risk/reward ratio, you're free to replace the player with a player of equal or similar skill that is not an NT player.
By far the easiest way to solve this, is just remove injury from NT games. Not your way of trading players. Sure, it's challenging, but what's the point?
'By far the easiest way' to solve headache is to chop someone's head off. Hmmm...
On top of that i could easily find a way to abuse this rule, in order to win the first league, as an NT coach. Not that i'm an NT coach, but you might see people invite a top-notch player from a competitive team in order to try and injure him via NT matches.
Yeah, good luck with that. Should we also hide player skills from NT coaches? This is even easier to abuse.
Once a player is branded an NT player, the manager will receive a handicap. An extra chance of an injury, without any advantages/compensation whatsoever.
The fact that you keep harping on this does not make it true. NT players receive extra experience for playing in the NT games.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."