Further League Overview Customization
I think being able to allow Commissioners to customize the homepage of the "League Overview" (i.e banner for the league at the top of the page) would be a nice feature to further customize your league and make it your own.
Since Toyota is paying Yahoo! for ads, don't look for that part to change.
Make each owner able to custom organize the home page. I want to see transactions when I open up league...not have to scroll down 3/4 of page. The Toyota adds and Champion of champion adds should not be prioritized on page while you shove the transaction log at bottom. This can be easily done...lets hope you take this into serious consideration