What is the objective of a real-life football manager?
Answer that and you've answered your question.
The objective of Pep Guardiola is not the same as a non-league manager, so too in the game.
I used to watch a good few daily YouTube careers. I'm a lower league manager, but I got sick of all of them going from the lowest playable team to winning the Champions League. Maybe most follow that path, but not me. Constant winning and promotions bores me. I set my own objectives, such as seeing how far I can get playing kids my academy has produced, and never buying/acquiring a player from outside the club.