Burnley boss Brian Laws was at a loss to explain the 4-0 home defeat to Reading.
Only Bristol City had prevented the Clarets from winning at home this season before this, with Leon Cort's red card capping a bad day for the Clarets.
Laws said: "It's a difficult one to put your finger on, other than to say we've got to be totally honest with ourselves and say we weren't good enough.
"I've also got to give credit to Reading for doing a job on us.
"I just thought there were so many performances that were below par. You can live with one or two, but when it's half a team you get a kick up the backside.
"The performance certainly doesn't measure anywhere near what we're capable of. I could excuse the referee who I thought had a difficult game, but I thought the players were worse than that."