Quote Originally Posted by Ludo_Mansio View Post
It was changed to stop an exploit where players had 2nd teams they would use to train players up before transferring them to their 1st team. I believe some (clever?) players set up ladders of teams and transferred a player from one to the next training them as they went, ultimately creating a mutant player for their 1st team. The change to negotiations prevents this from happening.
You can stop this by limiting how many players you sell to a certain team , let s say one per season.