The tactics clearly aren't working. It didn't work against Derby either and there were no visible improvements against Stoke. Seemingly the game plan is to just cross the ball into the box at the first opportunity. Low quality crosses towards Gueye with a very low chance of success since there are several defenders in position ready to defend. It was so obvious that we needed a different approach and yet Ismael didn't make any meaningful changes until it was way too late.
I think his post match interview can be described as reality-defying nonsense. There was nothing to be happy about, and if he's actually pleased with the second half performance it's very worrying.