Human managers will always have an advantage over computer teams when it comes to tactics and strategy. Computer teams will however protect their players and make sure they have as good roster as possible. This is to ensure that there are competitive teams available for new users.
If someone wanted to (which I highly discourage), they could do this year after year and build their reputation, then take over a team in a Slow world. They would immediately be one of the top managers and have the inside track to the best FAs. That isn't right. I'd much rather work my way up the right way. In other words, if I joined Biscuit with that other account, that account would be rated higher than my current Biscuit account, which would be absurd.
I'm actually looking into a way how to rate manager reputation and success differently depending on world speed.