The defence definitely needs looking at, but that has been the case for some time though.
Hazard is a special talent and when the guy is actually making noises himself that he wants to come here, it's not an opportunity that should be passed up. I think it's easy to say we are already creative enough when in reality that might not be the case.
We've got Fabregas, enough said, and Nasri has really stepped up this season. Arshavin has the stats to backup what he provides the team with but he isn't getting any younger and I woudn't be comfortable on betting he'll be here next season. Aside from that, who else is there? Rosicky is next to useless these days, Wilshere shows the potential to create but is also quite 'Denilson-esque' in his play too often and the likes of Song, Denilson and Diaby can provide something here and there but are far too erratic to be relied upon and whether Song should even be trying to provide for us is one of the biggest debates amongst Arsenal fans right now.
Hazard can create both through a pass or a dribble, and we've only got Nasri who can do that consistently at the minute. Arshavin, bless him, tries but for every successful dribble/pass there are 35 other attempts that go hilariously (frustratingly is probably the more suitable word) wrong. I want Hazard at Arsenal regardless of whether the futures of the likes of Arshavin, Rosicky, Vela and Eboue (heh) are secure or not.