Plug in a second controller and interrupt the season mode fights. Click multiplayer and simply bash n' pin the "cooperative" second player and win the match!
This also works for General Manager mode; the only disadvantage you have would be the challengers, because you can't do what you could in WWE 2006 (use exhibition mode) and instead you have to do them straight from your locker room (Direct Challenge).
For those who are wondering what is in store for you after you beat the first two sets of challengers (Amateur and Legend tiers) the special challenge is that you have to be MICKIE JAMES and defeat THE GREAT KHALI. Good Luck!