Tbh, in the post Berba-Keane era no striker has really succeeded here except for Adebayor for one season. I think a great deal of that lies more in the way we play than anything else - none of Crouch, Defoe, Pav, Bent, Saha are true lone strikers, and our most prolific "goalscorers" in the past few seasons in VdV, Bale, Dempsey are deep-lying players.
Soldado can and does lead the line, but like many strikers he is best spearheading rapid, fluid counters. He is not about to dribble through five defenders and score on his own - and I think very few strikers can, outside RvP and Rooney and Suarez. The true lone strikers in Lukaku and Benteke are doing very well atm, but I still think it's up in the air how well they would do if they weren't playing in teams that tend to get a lot of space on the counter. The strikers in the top teams *must*, and I mean MUST, have perfect touch and control and a ridiculously sharp turn, because space is at a premium for them. Strikers in lower teams are allowed a bit of looseness.
The thing is, this season we are probably the *least* counterattacking of the top six. We pressure them all the way back into their own third, but that means we tend to face amassed ranks that constrict our own space to create chances. So it's not surprising Soldado is kinda snatching at half-chances atm, because it's not like he's getting one-on-ones or tap-in opportunities that just need clever runs to finish off, and he's not beastly in the air like Negredo and Lukaku. He has great technique on the ground, but he is not a natural 'tight spaces' flair striker. Let me point out that even Suarez had only 11 goals in his first season at Liverpool, when they had very similar stats to us right now - compressed spaces where the main goal is to dominate territory in their third, very few shots conceded, shitloads of shots in total but in truth few clear-cut chances created.
Imo, this is because our high-press style is very difficult to execute, requiring incredible levels of understanding and "fluency" within the team - a combination of both natural intelligence and technique in your players, but also coaching.
Everyone needs to be on the same wavelength, and that's not easy to do when you are trying to bed in so many new players. The upside is that the reward is potentially huge, and I do believe that as the season goes on the fluidity of our attack will improve more and more, we'll move the ball faster and faster and we'll start creating clearer chances even in these little tippy-tappy spaces.
Soldado may not be innately familiar with our style atm, but from what I've seen he has the fundamentals to make this work - a crisp touch, quick reactions, good awareness (assists, yay), intelligent movement, and a predisposition for one-touch plays, which is really critical when you have no space and time. The only weakness is really aerial, but that's what Paulinho and Chadli are here for.
It will take time to develop that chemistry though, so I don't think he'll really get off the mark until Spring - just not sure if the fans will give him that time though

So I'm actually really hopeful that Ade can come back into the fold soon, because I think his natural link-up talent would help him fit in faster with Eriken, Lamela and co. without as much coaching. But that means we're depending on Ade, and that's probably never a good thing.