the coach works for training, for winning loosing thats your job ;) And i won't see players loosing at the end of the season to raise their funds.
The increase of salary is the way that you had to work with him and care about him.
And the language, would change a lot in the system and you also need to change the market. So that maybe small ountry get their trainers for free, or maybe they are so rare that they can not get'em.