Only 4 months till january

plus we've got Borini, Yesil, Morgan and even Assaidi that can play that position, one of them will come good for goals
If you believe one of these will score at least 15-20 then suit yourself. I won't believe that, I'm not that deluded.
I think Suarez can easily get 15-20 this season, he got 11 last year and that was with his ban. I think the other four will be good for on average about 5 each depending on playing time. So that'd give us between 35-40 goals. If we go with a coservative estimate and say 35, I think we can expect another 10-15 from out wingers and midfield, with maybe another 10 coming from defenders.
That puts us to 55 at minimum, which isnt great but is an improvement on last year, but possibly 65 which as long as we tighten up at the back, should be enough goals.