There is definitely a need for an experienced back up catcher on this roster.
I would like to sign a reliever or two but I don't know if that will happen. I would have preferred a lefty like Mike Gonzalez or JP Howell (both whom signed cheap, manageable contracts) because then we would have the flexibility to trade Thornton and his contract. Aside from that I would definitely encourage the signing of a Moylan or Capps to fill Myers' hole.
I really do think we should bring in a lefty who's bat belongs in a ML line up. I would even settle for a Seth Smith/David DeJesus/Brandon Moss (not that I would want to buy high on Moss) type. Basically a better version of last year's signing of Fukudome.