Is it possibly on Burrow?
Some of those are good OL. If the OL is changed/ improved, and the QB is still getting killed, then when do we look at the scheme or the QB?
Rob Johnson could have been behind the 1990s Cowbows line and still been sacked 3-5 times a game. Sometimes it is the QB.
Also, Pittsburgh's D Line when healthy can cause havoc against anyone. We have seen it first hand. Problem is staying healthy.