I believe JDB said that was only a temporary option to help you get your salaries in line when these new rules were first enforced.
If you did it then, the Ai would change your coach salaries to be in line with the new requirements without you having to go through the ordeal of hiring/firing a whole new staff of coaches.
If you didn't, then you're now screwed.
Start by hiring all new position coaches at minimum salaries.