It's not that they need defensive cover, they've always been weak in defence, they are having more games where their gameplan isn't working. The best teams in the world eventually run out of idea's and get a bit stale, its happening more and more often to Barca in the past season or so, they had a bad spell last year, and maybe a worse one this year.
Christ, as I was typing Messi hit the bar and then a good save at the end.
Guardiola inherited a team that was the best in the world, at their peak, with really not a whole lot of pressure from the rest. Now Barca are under more pressure and Guardiola isn't seeming to be able to turn around not great performances.
Ibra actually worked VERY well for Barca, just didn't score enough, Eto'o was stunningly good and getting rid of him was a horrific mistake, getting rid of Ibra was even worse. Villa is a good striker but they aren't using him really as they should.
Guardiola, I guess as he buys more players the team is more his, and its not working as well. Fabregas was a good buy though, he's been exceptional, Sanchez/Villa, meh, especially for the money.
On a side note what is with Fortune, I think he'll last less long than Adebayor lasted for the BBC at the world cup. Did anyone see him after the Real game finished the main guy asked him a question and Fortune just didn't say anything paused for like 10 seconds then kept answering questions he wasn't asked, and talking gibberish, and the main guy was moving the conversation along by suggesting an answer for him.