Considering we haven't beaten a single team above 10th this season, this is a definite must win.
I can almost justify the poor WBA result as Boxing Day blues, those games are always hard after Xmas Day, but we should be able to dispatch Bournemouth reasonably simply. They're quite an open team. Even long ball should get some kind of result.
However, I expect we'll have less possession and struggle to score.
As @gash said, the ship has been steadied, now it's time to ask more of the players.