Expand your arena. You are capacity in everything except your Bleachers. This will bring in more money.
Invest in younger players, all your best players are 36+ and declining in skills.
Train some players, even just Starter-PAS potential. This will increase your attendance and merchandise. And it will give you a better team organically without having to buy players.
Have more American players in your starting lineup. This will also increase your merchandise.
These are just a few broad tips from glancing at your team.
I have 1757 players for sale and I'm $25,835,360 in debt. Buy them at outrageous prices, or be selfish and make me go bankrupt. You decide, BB.