Tbf, their turnaround under Rohl last season was pretty impressive and they seem to have recruited well - Lowe and Chalobah are established Championship players with EPL experience, plus they've added Bournemouth's Jamal Lowe, Man U youngster Charlie McNeill, goalkeepers Beadle and Hamer. Don't know enough about the overseas signings yet.
And it's not the strongest Championship I've seen. I expect West Brom/Leeds to fill the top two spaces. Luton have money(!), Burnley have a sh!te manager, Blunts are almost entirely a new team, Norwich rebuilding (again). Then you're looking at Blackburn, Preston, Coventry who were around the play-offs last season.
Of the promoted teams, Derby's pre-season has been terrible, Oxford will probably go straight back down, Portsmouth could go either way.