I could see this happening but I think if it was so Rivera had a knee jerk reaction in hiring Shula. Also it would surprise me that Norv would want to work with someone like that.
Well, ironically, one of Hue Jackson's best reported attributes, was his ability to incorporate the best strengths of his players and the various ideas of his position coaches. So obviously that wasn't the reason for not hiring Jackson, unless it was a trust/feel, comfortability issues from Rivera (who added later 'Shula knew exactly what we wanted to do on offense; what works and doesn't work and how to best utilize our players')??
As far as Chud: I think Norv's going to call the plays (even though it was initially reported that Chud may. Now it's up in the air). And if he does: what confidence does Chud show in his own play calling?
Plus, Norv went to Cleveland to be with his son. And Chud wouldn't have gotten the opportunity with out Norv going. Those two tidbits were widely reported.
Funny, strange world sometimes, isn't it?