They could easily trade one of the mid for help upfront or at the back.
Knew I forgot someone....
They do need help at the back, but they're likely going to sign Djimi Traore and Joseph can play some CB, not well, but he can play there. There are also rumblings that Tiffert could be bought out/traded, which would be even stupider.
Sure going to be interesting to see how they get their 'big money' striker now (Saviola, Martins and Postiga are rumored to be targets). Hopefully they can get by with Estrada and Martinez partnering EJ for now, but if either of them flop and/or if EJ turns into 2007-2011 EJ, there's going to be some problems.