#5 Should try to rehire CM Punk: He still has a lot to offer, and not just in the ring

CM Punk is a great technical wrestler, as we have established. He's also a cult of personality, possessed of fantastic mike skills, and has mainstream media recognition for his name. However, his biggest contributions to the WWE could come from areas no one is expecting.
A man who has spent decades wrestling at all levels of sports entertainment, from the indie scene to the big leagues of WWE, has a vast storehouse of knowledge about the sport. The knowledge he can pass on and share with up and coming WWE superstars.
Not to mention that Punk's mike skills could be taught, as well. He could help other wrestlers refine their promos and interview skills. And last but not least, CM Punk has proven to be a capable and worthy commentator in times past. Certainly, he's at least more intelligible than Booker T. CM Punk has a lot to offer the WWE, and not just in the ring.