Alan Pardew has put his hands up for Albion’s 2-1 defeat to Manchester United.
The new Baggies boss made a single change to the team that drew 0-0 with Liverpool in midweek.
But Albion looked flat in the opening 45 minutes and found themselves two goals down when Romelu Lukaku and a deflected Jesse Lingard strike gave the visitors the lead at the break.
The hosts were much improved after the break with substitutes Chris Brunt and Gareth Barry catching the eye.
“I think I picked the wrong team,” admitted Pardew. “The team that lacked energy and that’s my fault, I take full responsibility, I should have put some fresh legs in there.
“The boys gave me so much at Liverpool. Obviously I’m getting to know them but I didn’t think we had that energy in the first half that we need against Man United.
“It was too comfortable for them, we couldn’t get any pressure on them.
“It was quiet (at The Hawthorns) because we’re giving them nothing to get excited about.
“There were a couple of moments from Oli (Burke) but that was about it in the first half.
“Second half, we had some experience in Gareth Barry, I thought he made a big difference when he came on.
“There was conviction in his pass to try and get us going. Suddenly we start creating a little bit more pressure on them.
"And then Brunty come on and suddenly we looked threatening.”