The truth is that corruption surrounds the transfer of players because it is essentially a system of trafficking for profit, which gives many people other than the player himself the right to control whose offer of employment he accepts.

Think about this for one moment in the context of your own life. Imagine that the decision as to who you would work for next had to be agreed not only between you and your prospective employer, but also with your last employer. Imagine the company you currently work for could obstruct your move for up to three years, and in the meantime threaten to demote you so that you would be doing a job well beneath your skill level, potentially reducing your effectiveness once you are free to go.