Tony Pulis got off to a winning start in his first league game in charge as The Baggies saw off Hull City.
Saido Berahino's goal in the 78th minute was enough to earn Albion three valuable points against the struggling Tigers.
The victory moved Albion into 14th position - two points clear of 17th placed Hull.
After earning his victory in charge, Pulis again called for unity until the end of the season.
“There’s lot of work to be done, I think the crowd were very patient,” said Albion's new head coach.
“We will need them to be behind us. The important thing is that people have to recognise how tough this is going to be.
“People think I am just saying it to take the pressure off but just have a look at the Championship and how many teams are in there having spent years in the Premier League.
“The reason they have gone into the Championship is because they’ve got complacent, people around the place got complacent - without a question of a doubt and everybody took their foot off the pedal and almost accepted they were going to remain in the top flight, if you look at them."