Albion bounced back from the sacking of Darren Moore with a 3-0 victory over Swansea City at The Hawthorns.
The Baggies recorded their first victory at home since Boxing Day with goals from Chris Brunt, Mason Holgate and Jay Rodriguez.
Caretaker boss James Shan took charge of the Baggies and was helped as Swansea forward Bersant Celina spooned his spot kick on the stroke of half time.
Albion had Sam Johnstone to thank for keeping a clean sheet with the keeper making a number of eye-catching stops to keep the visitors out before Shan's side found their feet.
Victory over the Swans was Albion's first double over their Welsh rivals since 1964.