Age disparity is only real point you have. Keith leaves his chin on a platter. Has thurman ever faced an opponent, with the speed or power of pac man?
No, but timing negates speed and he can take manny's power he won't have to worry about the body attack so much, also manny won't be very aggressive with Keith. When's the last time Manny punished somebody, the come forward Margarito who had no punching power.
Keith has the power to put Manny and he's good at timing his shots when he has the spacing, he won't get mauled like he did against porter.
Manny's power has been amazing for years, all of a sudden he's been looking quite regular to be honest. I wonder why.
If it's so easy they would take the fight, They won't fight Thurman period, becasue Thurman would KO him.
They put him in the ring with Algeri because he can't punch.
They put him in with Bradley because he can't punch.
They put him in with Floyd for money and the fact he has two bad hands and can't punch anymore.
They won't put him in with Thurman because he would knock him out, period.