Championship Manager: Season 03/04 is the last Sports Interactive edition of the successful series. The game retains all the features of Championship Manager 4, but improves on many of them, with a host of new features added too:

- Improved Media Module
- Player to player relationships
- Updated data for 03/04 Season
- New intuitive training system; effects of training now visually indicated on player profile screen
- Improved match engine with more commentary, better AI, weather effects and inclusion of visual status indicators
- Goal of the month and season awards