I agree, we do have a lot. I'm assuming Parker and Huddlestone will leave whilst Livermore may be playing centre back next season. That would leave us with Capoue(potentially), Sandro, Paulinho, Dembele, Holtby and Carroll(might go on loan) and that should give us 6 for 3 positions(if we go 433). Personally, whilst it's great to have strength, I think that's a bit stronger than we need.
As for wingers, I feel that's an area we're very strong in again. Lennon, Bale, Townsend, Chadli and Sigurdsson is a lot for 2 positions but it would be great to be able to rest both Lennon and Bale as they pick up injuries towards the end of the season every year so having a lot of flexibility there is very welcome.
Right back and centre back are where I'd like to see us strengthening as it stands. If Walker gets injured we're stuck with Naughton, who's not great and at centre back we're already struggling for numbers and the season hasn't even started yet!