Tony Pulis admitted things are starting to come together with his side after watching Albion's thrashing of West Ham.
Albion put themselves in the draw for the FA Cup quarter final thanks for a brace from in-form Brown Ideye and goals from James Morrison and Saido Berahino.
The victory was Albion's most complete under Pulis. But the Welshman insists there's still plenty of hard work to do.
“We’ve still got a lot of work," Pulis insisted.
“Yes, there were things that pleased me in this performance but there are also plenty of things driving me mad still!
“This is a different team with different qualities to the one I worked with at Palace and at Stoke. At Palace, for example, we had pace down the sides but we don’t have that here. We have other qualities such as trickery and we’ve got ‘Bobby’ and Berahino working as a partnership. But it is all about adapting to the strengths we have and we are still working on that.
“We’ve got as very tough game coming up next weekend at Sunderland and we’ve got to bring everybody down to earth to make sure they are focused on that and that alone.
“I’m delighted for the fans and I think they would have enjoyed themselves with this performance. They will enjoy the draw – but my job now is to get this group focused only on Sunderland.”