I haven't seen most of the other bottom half Eredivisie teams, but Cambuur looked absolute awful. Even if it was against likely champions Ajax, so they will obviously be better matched against other lower level teams. But based on this match, I wouldn' be surprised if they're relegated at the end of the season.
Ajax could/should have scored at least another four, especially in the first half they made several good passes from the right flank (by Rensch, maybe) into the box, and all you needed was somebody to tap them in, the net was wide open. I don't where Brobbey was at those times, but he certainly wasn't at that spot where CF was supposed to be.
He was rightfully pulled at half time, and at least in the 2nd half Kudus managed finish one of those chances (albeit that time a pass from the left flank by Bassey).
CBs Timber and Bassey often found themselves almost being like deep-lying playmakers, as they were the ones with the ball near the opponent's box, trying to create something. As pretty much every Cambuur player was in and around their penalty area.
Even on the few Cambuur counter attacks there was no real threat for Ajax, as Bassey was easily able use his good speed to catch any opponent running with the ball.