@Awful, there's plenty of information available for new managers, both in the help files and on the forums, either through searching questions that have already been answered or by asking new questions.
There was no additional information for the longer serving managers, yet they coped, figured out things for themselves or asked/searched for the info.
Once again we have the "life's not fair" brigade piping up.
The fact some people are too lazy to look or ask is their own problem.Alas, some people will always make excuses for their own failings, some will comlpain about unfairness and those asking for a restart don't give a damn about the time, effort and money some of those longer serving managers have put in to build their teams up. It's all about them.
They can catch up, others have proven it can be done. It just takes time and effort. If some people aren't prepared to put that effort in, then maybe this kind of game isn't for them.