I agree with Mamoon that there is a chance we can slip even further. However there are solutions to every problem. One very interesting comment made by the Kiwi commentators during the test series was "..Pakistan has always had natural talent, it is the lack of structure around it ..". Now this statement alone sums up our issue and the solution. For far too long we have been treating all facets of cricket as "natural talent" that people either possess or they don't and this talent cannot be harnessed/enhanced in any way. The world has now moved on and in addition to the natural skills, sports science is a reality. Unfortunately, the PCB has failed to understand this and hence they dont have any one who can talk about the science of batting, balling and fielding. The result is they hire "legends" like Waqar and Misbah, who in turn never really understood any scientific aspects of playing. I am fairly sure there are numerous posters here who are more well versed with the science of fast bowling than Waqar himself!
Now coming to the structure aspect, I believe Wasim Khan's hiring -- or that was one of the positives I was hoping for -- was that he would run the organisation like any other major enterprise. When you take up a top tier senior position (or even a lot of mid tier leadership position), the first thing you need is a vision -- where do we want to be in the next 5 years? Say he could have identified the goal for the next 3 or 5 years as being in the top 3 in all formats. From this they could have started building a strategy. Instead of taking a people-first approach (i.e. saying that we have X, Y Z people, how do we fit them in the team) , the approach should be strategy-first approach i.e. We want our top 5 batters in T20 team with a combined average + SR of over 180. Identifying these mini strategies and then building an ideal team, they could have given roles to individuals and based on their success or failure, changed the individuals -- this is where you can have key performance metrics for the players so they understand what was expected from them and whether they are doing a good job or not. Once you have KPIs for the players, the same has to be the approach for all the coaching staff -- how hard is it to tell a bowling coach that his role is to set bowlers up for success and that in the next year, he should get 5 bowlers who have , for example, a less than 30 avg in Test cricket.
The above is just an example of how they could have run it as a major company. But ofcourse this requires a lot of thought process which I dont see anyone doing. The biggest concern is that we cannot expect any of the ex-cricketers to understand this process aspect and the bureaucracy is just too corrupt (or feudal in nature) to take any such steps. The best bet was someone like Wasim Khan but I am gradually losing hope given how he has handled the coaching saga.