Now that the Roster Organizer is available in-season (without using the address bar), I can think of a few ways to improve it:
First, now that Player Pages have next year's projected positions, it would be great to use those in the Roster Organizer. Ideally there'd be an option to easily switch between current and projected positions, but if I had to pick one, on that page I'd rather have next year's.
Second, including inflation in players' salaries would show better salary cap information without forcing users to manually count major and minor leaguers, overstate the number of roster spots used so they can include those dollars, and remember to adjust them as they move players on and off the Trade and Cut lists.
Related to above, a separate box, unattached to any player or roster spot, where you could put an allocation arbitration estimate to be added to your cap, would be helpful.
Thanks for all the hard work!