If Sega goes under, you know who I'll blame? EA.
Anyone who looks at any list of the best-selling games annually has probably noticed that Madden sells better than most game titles combined.
The NFL 2K series by Sega Sports was gaining a lot of popularity when EA grabbed the NFL license for themselves. By NFL 2K5, they had a product equal to or better than Madden, at a cheaper price. If Sega had been allowed to continue making NFL 2K games, the monstrous sales from that alone could keep the company afloat, even if they made 30 failed titles per year.