I think the issue in part is that people want the summer transfer window to represent one giant leap in terms of making a breakthrough, and then get progressively frustrated as results and performances dictate that that will not happen. I am definitely guilty of this myself, it just comes with the realisation that another year will pass, another year of flatlining and nothing of particular note in terms of concrete achievement.
Considering the limitations of doing business in January, the bulk of our spending now gets done in a two week window, once a year. If you consider the amount of rebuilding work that Brands and Silva have had to plan for and implement, and if we look at things over the context of the length of Silva's contract, then roughly speaking, in terms of an overhaul, we are not doing badly. You can't make predictions on the outcome of one game, but the issues were depressingly familiar on Saturday. We must give the new signings time to bed down though.
The main issues as I see it are twofold 1) We have begun the last two summers needing, depending on argument, 4-8 new players. With a finite budget, it is difficult to spread that around amongst so many new recruits 2) Making a big-money signing, flash signing, such as we tried for with Zaha, is inherently difficult due in part to the resistance faced from the selling club, and the impact that a single large spend would have on our ability to spread the budget elsewhere.
Without selling any of our better players next summer, and I think Richarlison will be likely to leave if he can improve this year, we still need at minimum another CB, a creative option in midfield, and 2 forwards. That's assuming all of this summers new signings can come good.
If these things happen, then perhaps this time next year, with further good recruitment, we may realistically find ourselves in a position to mount a proper challenge to the top six. I think the ultimate goal is to get to the stage where we can spend all of our budget on one or two top class players as Spurs can now do. Before that, it's a bit chicken and egg. We have to hope the signings are a success, we can't attract the highest quality players, but we also need Silva to mould a team that is better collectively than the sum of its parts. It's not all about money.