Stoke City chairman Peter Coates was furious after defeat at home to Tottenham.
Coates told the Stoke Sentinel: “We were ok for 40 minutes and were just about the better team, but then we were really poor and there's no disguising that. It was a really bad display.
“In the other games this season, nothing much had gone for us and I have previously said what I have said about those games.
“But against Tottenham we conceded a goal and then fell to pieces. There's no point hiding from that fact. It was a very poor performance.
“We haven't been scoring goals and then been going behind - and once we go behind we are not able to deal with it.
“I give an honest opinion. I'm sure that what I have seen Mark and his coaches have seen and they will want to sort it very quickly."