In-light of the recent announcement by Sega with regards to their upcoming football manager game, Football Manager 2006, needing a HDD to play, Sega have released an official statement:
Because we wanted to give Xbox 360 users a superior game experience with the same richness and tactical depth that Football Manager has traditionally offered, we asked Microsoft whether we could develop Football Manager 2006 to be a Hard Drive only game. Microsoft agreed as they wanted the best possible game for their console, and with Xbox Live multiplayer being incorporated into the title, we now have a complete Football Manager experience for console gamers, the first time in the franchise’s history.
We’ve requested more information as to exactly why the game requires a HDD and will update you when we receive an official reply.


