In fairness, if you are a worldwide #1 player and drop to, let's just say, some ranking that is so irrelevant that you can't be placed on a new professional tea

In fairness, if you are a worldwide #1 player and drop to, let's just say, some ranking that is so irrelevant that you can't be placed on a new professional team then there are avenues for you that are outside of actual playing at a high level. Analyst, caster, commentator, streamer, coach, manager... etc. Same goes for programming. When you aren't a good programmer anymore, then it becomes time to turn into a manager. :)