The best way to make more money is salary efficient players. A big part of that is game shape. For example your highest salary player right now has average game shape, if he had strong game shape and 10k less salary he would play the same and save you 10k per week. Another important way to have salary efficient players is high secondary skills like passing and OD on big men which have a big effect and are free.
It may seem like this is a separate subject but it's not. How much you are making each week is directly related to how much you are winning which drives attendance and prices (especially the games before home games) and also how much you are paying in salary. Salary efficiency is always going to affect both of these things.
Also +1 to fixing your ticket prices, the optimal point is high enough that you are just barely not selling out.