I'm starting to think Sherk catches a knee on a telegraphed TD attempt and then BJ capitalizes by taking his back. An RNC or GnP follows. I'm a flip-flopper.
That's the problem with Sherk (and other wrestlers) striking - it's only 'subsistence striking'. You, I, BJ, Sherk, and the entire fvcking MMA world know that Sherk's only purpose in striking is to set up a takedown. That's why GSP's takedown rate is 80% or something ungodly, his strikes are dangerous and accurate, and pose an actual threat.
BJ's creativity will also stump Sherk. I notice that wrestlers train BJJ technically, as they don't have the 'feel', so to speak. In other words, they know where their hands and feet should and should not be to avoid danger in a strict sense, but the most expert BJJ practitioners don't necessarily pull subs out of classic positions.
Couple that with BJ's dexterity and ability to neutralize, almost totally, far better wrestlers than Sherk (GSP, Matt Hughes) and it does not bode well for Sherk.
People think Sherk got better, stronger, faster at 155; personally, I think his opponents got weaker, especially at wrestling, relative to his opponents at 170.
BJ by slick-ass sub due to wrestler-overzealousness, second rd.