I think that's a very interesting question. We're playing a team currently 12th, who's home form is 2 wins, 2 draws and 2 losses.
The two losses came in the first two home matches and one of the draws was against Arsenal. So, the haven't lost at home in 3 months! I guess what I'm saying is that the match should not be a pushover, despite West Brom being a little down in the table.
But we're six points behind. Arsenal is showing no signs of catching their breath, much less slowing down. We need to hang within striking distance. We've already lost 4 matches away this season. Our only win coming at the expense of West Ham. If we're going to win the Premier League, there are only so many losses we can take. We expect to loose to other top clubs occasionally, and have a banana peel or two with the lower clubs. But we've already had a full quota of banana peels for the season.
We need a win!