I don't think they're great to be fair, but they work in Klopp's system (though I do rate Wijnaldum rather highly, think he's an underrated footballer). Robertson is the best LB in the league and I'd love him in our team, and yeah TAA isn't the finished article but still, a quality prospect. They also have the best central defender in the league at the moment, to go with one of the best keepers. They're playing exceptionally well and are incredibly consistent in the league, it's a tough ask to expect us to match it when City are struggling with their options.
We have a decent keeper, good central defenders, a solid but unspectacular midfield and excellent attacking options. This could be enough to challenge for the title a few years ago, but City and Liverpool have upped the bar and the fact is they both have better squads than us right now. I don't think we'll be miles behind come the end of the season, but I do think across the pitch they have that bit extra and that'll show come the final table. I don't think it's fair to expect Kane to carry us to a title challenge when the other sides also possess players on his level (Aguero, Salah etc). He will compete for the golden boot once again, what more can you really ask from your striker? It won't be his fault if we don't compete.