So how can they improve? It's about being desperate, it's about controlling the ruck and it's about making good decisions on the edges. Melbourne are the kings in this area. They generally dominate the play-the-ball area, which makes it a lot easier to defend out wide.
When the Warriors have had problems this year - like against the Titans, Cowboys and Storm - it all started because they were getting over-run in the ruck area. Wrapping up the middle will be a good starting point. The edge defence has been patchy all season and that hasn't been helped by the constantly changing personnel, especially on the right.
But no matter who is lining up, the communication out wide needs to be a lot better and they have to chase from the inside out; don't stop just because the ball has been moved on.
It won't be easy on Sunday, with Shaun Johnson and Tui Lolohea forming another combination on the right. The two are both capable defenders but they'll be tested, especially by Joey Leilua.
It's never fun playing the Knights. They don't have the biggest pack but they are all tough nuts, with the Novocastrian approach that has defined the team down the decades. Beau Scott and Jeremy Smith are the best examples, they are unrelenting and will be out to intimidate.
Smith always seems to have a big game against the Warriors while Scott is becoming one of the most effective enforcers in the game. Remember what he did to Johnathan Thurston earlier in the year? That will be the recipe to upset Shaun Johnson and Sam Tomkins, to put them off their game and shut down their time and space.
Whatever is thrown at the Warriors, they have to weather it and focus on delivering their best, while hoping that the likes of Ryan Hoffman and Ben Matulino can deliver a few blows of their own. Tomkins will also add some polish to the Warriors attack; his timing in superb and he gets the best out of the players around him, especially when the team run set plays.