As a manager of a football team in a football management game, I have done the following.
I have bought players, that according to the information provided, many of which should be very good players or even become world class players.
I have been training my players appropriately at least to a decent extent, and also maintaining them in good condition.
I have been training players regularly for in-game bonuses.
I have been motivating the players with win match bonuses.
I have been scouting the opponents and making adjustments.
I have been attending nearly all matches and making adjustments according to logic and past experiences.
I can say that I have not been satisfied enough from what I have been seeing as the players performance, the results, the game response to the manager's actions and so on, but the team made it to the Cup semi final (lost) and Super League Final (lost) and it is probably going to win the league.
Briefly, I have been doing what a football manager should be doing, but if some other managers been doing less or even much less but winning more or getting eye-catching results regularly, then this is a concern and at least something is wrong.