We've been second best at the breakdown to every side with a 7 in an age, though.
Haskell has been the best 7 we've used of the "6.5"s, but still isn't a true openside. Balance in the back row is important, but ours isn't balanced with two 6s on the pitch (Robshaw is doing a job at 7, but really is just playing as a 6 to cover for Croft who is often hanging out on the wing/not getting stuck).
With Haskell back now, though, we should see more balance to the backrow - hopefully with Robshaw moving back to 6 and Haskell to 7 (I think Haskell is a better 6 than 7, however he's a better 7 than Robshaw).
I, too, think we're missing a hardnosed 6 *coughCARL FEARNScough*