Darren Moore says his players' desire to earn all three points inspired their comeback against Sheffield United.
The hosts took an early lead when David McGoldrick held off Craig Dawson to fire home.
The Baggies had their backs up against the wall for most of the first half until Gareth Barry swept home after good work down Albion's left.
The comeback was then completed in the second half when Kieron Gibbs fired home from close range after good work from Matty Phillips and Harvey Barnes.
"They put us on the back foot but after 25 minutes we grew into the game," said Moore.
"I felt we got to the pace of the game and Gareth's goal was a turning point.
"We said to the players at half-time 'this is one of those games where you're going to have to dig deep and go and get it if you want the three points'.
"The momentum they carried into the second half was brilliant.
"We made a tactical change to stop them from switching the play on us.
"Once we stopped and nullified that we managed to get a foothold and managed to create chances.
"We got stronger as the game went on and gaps started to appear.
"It was a fantastic finish from Gibbo to get us the victory."