Sheff United isn't that poor - they're well organized and modestly talented. They won't be top half but they're no Cardiff or Huddersfield.
I thought that was a better first half than Wolves or Chelsea, though still not great. We were pretty much imposing ourselves on them in the final 20-25 minutes and harrying them off the ball, but as usual struggling to connect several passes to construct an attack. I was actually surprised to see Praet playing so high up the pitch - higher than Tielemans most of the time. He made a couple of nice interceptions in our end and his presence freed up space for Tielemans and Maddison to operate, but I think he'll be more effective in attack if he sits a little deeper.