That is exactly what is happening but in real life the money would be pouring because they would have faith in the manager to return the investment.Win competitions and increase your reputation. Im guessing you just got promoted into the championship and still have a relatively small stadium and fanbase. Think about it from the sponsors point of view. Why should they invest money in your club? The more games you win and trophies you earn, the reasons you give them to spend their money sponsoring the team.