I hate to echo what others have previously said, but, I will. Jericho's lack of a stellar return has made the possibility of him making Ziggler a star all but impossible. I do understand that Jericho wants to help put others over and admire that. He's an upper level jobber at best and having Ziggler win against Jericho at this point in his career will not give him any more credibility heading into the main events. And I am a Jericho fan, have been since his WCW days until currently. WWE needs to repair what damage they've done with Jericho or else his jobbing means nothing.
That being said, if done right I do believe Ziggler could learn alot from working with Jericho. It might give him a better understanding of what he's lacking and needs to get to that next level. The matches between them would be excellent, no doubt. But, we all know how it ends; Jericho loses AGAIN. It's horrible when that's the norm for anything Chris Jericho related because he's better than that.
If WWE really want to get Ziggler over, he has to beat higher ups. Daniel Bryan, CM Punk, John Cena. Maybe even brief interaction with a returning Rock? All of which would do more to increase Zig's cred with fans.