It could happen, but I'd be surprised at the rate it's gone so far. I imagine that after 11 games last season, the rest had scored a good few more than 4. I think there's only two ways they'll get to 30, either Suarez, Sturridge or both are out injured. Or we've nothing left to play for late on and we go out and batter a few teams. Neither are particularly appealing.
I'd be perfectly happy if our front two stayed fit and kept scoring, but that's unlikely too, so I reckon this will be our downfall this season, our other nine players don't contribute enough. With the exception of Gerrard, the rest don't score near enough goals.
I'd be more than happy to be proved wrong, but I'd say we'll do well to get 20-25 from the rest of the team, putting us on about 60-70 goals, which is good enough for 3rd-5th place.