I disagree about the "you can´t blame them" part. Strongly disagree.
It might help to get a "projected financial development" feature though, which gives you the estimates of your financial development over the course of a season at any point (you might want to add the value for your arena incomes manually), so that the minor league teams stop running out of money all the time.
Otoh, teams going bankrupt actually ADD money to the overall economical circle (as their debt gets erased), so I doubt less team running out of money is going to fix the prices for the top league players.
Zwei Dinge sind unendlich, die Dummheit und das All...