Terrible article! Rosicky has been a good player for Arsenal, Mertesacker has improved massively from last season, Giroud and Podolski have just joined, Diaby for 2 million is by all means a good buy -it's his injuries that hamper his game- and not only did Hleb play well (IMO), but Arsenal actually made a profit on him when he was sold. Of the remaining few I agree with most, although it could be argued that Ramsey and Eduardo got ruined by injuries.
Furthermore, the second part of the article -those "potential" buys mentioned at the bottom- is even worse than the first part. When we got Baines, Arsenal had Clichy and Gibbs. Why would they spend 6m on another left back? By the time they needed a new LB, Baines' value had tripled. The same can be argued for most, if not all, of the other players.