You're on a real crest of a wave and look well organised, whilst currently McLean and more consistently Larrson provide attacking ability on the wings, but I'm not sure you're THAT strong just yet...
We've lost Ba and it will hurt us, but who do you full stop? Bendtner is overrated, Ji doesn't look a proper threat yet and Wickham is still too young and inexperienced. Best hasn't scored as many but he's been playing as Ba's workman, doing all the dirty work for him! Out of Best's 10 starts this season, we've won 7! Shola is a donkey but he is always good against you
We've lost Tiote, but for me Cabaye is equally as good if not a little better (his distribution is unreal) and with Guthrie, despite what Tash says, we have an able player who will do a decent job, nothing more. With Abeid and Vuckic we have our own McLeans so to speak (if you haven't already, take a look at Vuckic's efforts in the recent game against WBA - unreal!)
Aside from that we're not really weakened and so it'd be a good, tough game, far from the walk over that you seem to have initially implied!