LOL, what BJJ?
Take away and or avoid JDS' greatest strength (stand up boxing) and JDS has nothing. He's so far off from being a complete fighter it's not even funny.
Um the ability to stand up, call it wrestling/bjj/grappling I think he actually did well with stuffing the shots and getting up after being so rocked. All this against the best wrestler/mma fighter currently in the UFC Heavyweight division.
If we play this game it's easy, take away Cain's wrestling, what would happen then? He'd get KO'd by JDS. JDS is the better striker but with the threat of takedowns and Cain mixing it up he more than levels the field