Cape Town - Manchester United manager Louis van Gaal admits his side need to learn to kill games off as they look to climb into the top four on Monday evening.
The Red Devils appear to finally be finding their feet under the new boss, with back-to-back wins over West Ham and Everton prior to the international break helping ease the pressure of a rough start to the campaign.
However, United were made to hold on for 2-1 results in both those encounters, and Van Gaal is hoping for a more ruthless streak when they travel to the Hawthorns to face West Brom on Monday.
"When you see a match, when a trainer or coach is honest, you see his team is not playing 90 minutes at the highest level,” he said.
“So, that is not so difficult to feel and analyse, but to improve it is much more difficult. That is what we are looking for.
"The players are willing to do everything and we saw that in the matches against West Ham and Everton, but you have to do it in the right way.
"To kill a game, for example, you need a lot of discipline, and discipline together - not with three players or eight players, but with 11 players.
"That is the most difficult thing and we can do that, but that needs time."