Carlos Corberán admitted Albion needed to do more to claim three points as they were held to a goalless draw by Plymouth Argyle on Saturday afternoon.
Last season’s League One champions were the better team in the opening half, striking the post through Morgan Whittaker and forcing Alex Palmer into a smart stop to prevent Kaine Kesler-Hayden from scoring from inside the box.
The Baggies rallied and performed better after the interval, however they were unable to find a breakthrough and had to settle for a share of the spoils.
The boss said: “From the result point of view, yes, it was a frustrating afternoon. From the performance in the first half point of view, too, then maybe.
“However, I saw a necessary reaction in the second half and I think the team performed better than in the first half.
“It allowed us to be more dominant in the second period and create more chances, but unfortunately, the few clear chances that we had, of which most came from set-pieces, we couldn't manage to score.
“They were better than us in the first period of the game and we were better than them after the break.
“We are always going to play with the highest level of respect for every opponent in this division because we know how good each team is. Plymouth are no different.
“There were some circumstances which didn’t help us today.
“The first one was when we were trying to be aggressive, they managed to find a way to break our press. When they broke the press, they created chances and got into the final third.
“When you press in football, the energy you need to recover the ball is always high but when you don’t get it, it can be frustrating and it can be a negative feeling.
“The attack didn’t work well in the first half, but it worked much better after the break. The pressing was better too.
“We were growing in the game, but it’s true that we need to do more to win.”