After training camp during franchise mode, if you have at least three points or more, you can hold down the nunchuck joystick to the right and the d-pad to the right on the wiimote at the same time to go over the alloted amount of attribute points you have won by one point. By going back down the amount of real points you have won and repeating the procedure, you can keep doing this until the full 99 points have been reached.