Carra says the turmoil at Newcastle this summer will be a factor.
He told Sky Sports: "You always look at the promoted sides. There may be a surprise package, but you would have to say they are teams that could get involved in a relegation battle. You look at Norwich and Stoke, who came close last season and may be dragged in again and you look at Newcastle and the situation last season and what's going on behind the scenes there now. I'd be looking at maybe those three teams plus the promoted sides."