I think the biggest problem right now is leadership and inexperience. Someone who can take the game by the scruff of the neck and control things. What's been good is that they have been getting wins lately without it, but against the top 4 teams like the Dogs it comes back to bite you on the arse. 26-26 with 20 to go, thats when it bit them.
Kimmorley is so handy because he has his hands on the ball at all times, he has a great kicking game and is respected by teamates. Having won a premiership and played for Australia helps a bit too.
Where is ET when you need him? Hows about they try and sign a 3 week contract for ET until BK comes back.

He'd rev the shit out of them in the huddle if he was out there today.
Once Kimmorley comes back, all the inexperience problems will be swept under the rug, but they still need to get a couple more wins to make the finals run easier. That's my take on it anyway.