Madden NFL 10 Franchise Mode Question: How can i turn OFF the way the CPU change my team after 1st half?

Everytime I start a new franchise and after the very first half my team changes to the people on the bench. So Brady is changed to O'Connell and the other great players are also changed.Madden NFL 10 Franchise Mode Question: How can i turn OFF the way the CPU change my team after 1st half?settings