Oh god, here we go again.
Having thought about it again Zagreb is correct that such blatant disinformation does need to be called out for other users benefit.
Nothing you say is remotely true. Salary as calculated at the start of each season does take into account sub levels so there is no 'salary efficiency' aspect. Certainly not in the way you are describing it.
For anyone reading, you are warned not to trust a word that the AI enthusiast spouts. They say even broken clock is right twice a day, but I am starting to question even that.
Training a player who you think could make our u21 National Team? Message me to check in with progress towards the team.