West Bromwich Albion interim head coach James Morrison says his side's 2-1 loss at fellow strugglers Oxford United was "not acceptable."
The defeat extended their winless run to 11 league games and came in a week which saw the Baggies sack head coach Eric Ramsay after a nine-game spell in charge.
West Brom are still one point above the relegation zone, but Oxford have closed the gap to the Baggies to three points.
"It's not acceptable," he told BBC WM.
"I thought we started the game on top in the first 15 minutes, but we knew what game plan was going to come and we didn't deal with it.
"They've got to take responsibility for that - two balls in the box, two goals in the first 30 minutes. How are you supposed to have a chance of winning a game away from home?
"Then when we were around the box we weren't creative enough, weren't brave enough. It's deeply disappointing."
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