#4 Should not rehire CM Punk: He has a lot of sour grapes

One of the major reasons that CM Punk cited for leaving the WWE was his treatment by the company. CM Punk believed that he was not being treated as the major star that he is, and among his complaints were having to lose to Triple H.
But when you objectively examine CM Punk's career, you find that he was actually treated quite well by the WWE. ECW Champion, WWE World Champion, Intercontinental Champion, World Tag Team Champion...CM Punk held nearly every title available during his WWE run. Not to mention that after his 'pipe bomb' promo he essentially became the star of Raw each and every week as he jousted verbally with John Laurinaitis.
And as far as losing to Triple H goes, the WWE locker room is full of athletes who would LOVE the opportunity to lose to CM Punk or John Cena because of the prestige facing those men would bring to their careers. CM Punk has a lot of sour grapes, and most of them are not warranted. There's no point in hiring someone as bitter as CM Punk to a new contract since he'll probably just act the same as last time around.