"I cannot understand how such a fantastic group of people and such a terrific team that has done so well to get where we are now puts on a performance like that. It's incredible.
"I'm not surprised by the result after that performance and to give Burnley their credit, they came here expecting an onslaught from us but they didn't get it.
"The passion that is usually seen from Watford just wasn't there and it's one of those things where I know have to think about shaking it up again.
"It was sub-standard performance and it was like that from minute one and it didn't get any better.
"It was an awful spectacle, and absolute shocker."