Burnley suffered a 4-0 thrashing at The Hawthorns for the second visit in a row and Sean Dyche was frustrated by his side's naivety.
Sean Dyche felt Burnley played into West Brom's hands as they were on the wrong end of another Hawthorns hammering on Monday.
Just as on their last visit in 2014, the Clarets went down 4-0, with Matt Phillips, James Morrison, Darren Fletcher and Salomon Rondon on target for the rampant hosts.
Dyche, whose side have taken just one point from five games on the road this season, conceded the display had been a long way short of expectations, with Burnley having held on a for a battling draw in their last away trip, to Manchester United.