I think they could be, yes. I don't expect a noticeable drop off. What good is an all pro who does not show up for practice and meetings for week 17 cause he is butthurt about someone else being voted team MVP? More talent is better, I agree but there is also something to be said for guys who are selfish losers that can bring the team down because they are not committed.
I absolutely think the Steelers will win 9 or more games next year, matching last years output.