Correct. Seattle's problem is they keep hiring DC's in house, they need to look outside of the team. Since Harbaugh arrived in Baltimore, they pretty much have always had a very good D. There were a few times when their D wasn't as good, but overall, they've always had a good D.
Many here have argued that top coordinator candidates won't come here because they would refuse to work under PC's restrictions.
I don't know one way or the other, but if pressed I would tend to agree with this view.
There's plenty of debate about Schotty, but I think he was the best OC the Seahawks have had during 0C's tenure.
I know that Schotty had a meeting with PC to sign an extension. I know that the extension was not signed and that both parties cited "philosophical differences" as the reason.
My experience tells me that the most likely scenario is that Schotty brought the rubber to the road and told PC he needed to be able to run the Offense HIS way, and that PC said "no way, you have to run it within these guidelines". Schotty said "F that, I'm outta here" because he didn't want to work within the guidelines PC laid out.
I don't think PC will have much luck luring a hot, young DC candidate.
I hope I'm wrong.