The one improvement I wish they would make is in the search category under the " Players " tab. Right now you can sort players by Position , whether they are a FA or not ect... but they need a option where you can just look at the guys who are on the waiver wire without having to go through hundreds of names and pick them out individually.
Other than that leave everything the same because when you start trying to add all kinds of fancy crap is when you screw things up. The whole reason people flock to Yahoo is because it's fairly simple to play so they need to keep it that way.
Oh and get rid of that retarded Drop and Drag feature because it's worthless.