Out of an unfortunate source, you have brought forward a very good question, and I would like to thank you for that.
I don't think that it is possible for any politician to be a top level manager.
A top level manager must spend full time thinking about the problems of an organization or nation, and considering what to do.
A politician, on the other hand, is distracted by having to think about many things irrelevant to his or her managing job. A politician must take time to remember thousands of names of people important to her or him getting elected. A politician must also spend a lot of time with those people on election matters, etc. So, already, the politician doesn't have all that much time left to think about the problems of the nation or group.
Then, the politician is normally oriented towards finding a compromise solution which will be supported by enough groups. A compromise solution will usually be much less effective than a solution developed in terms of what the problem is and what could be done to solve it. So the best possible solution rarely even gets thought up, let alone put into place.
I don't have a good solution for this problem. We do absolutely need to be a democracy, so we need to elect people to office, even though the fact that they have to be elected makes them into bad managers.
In theory, the public could objectively look at the problems and give ideal solutions to the politicians so they could concentrate on being elected.
However, the public doesn't have time to do that job. For the public to be able to find the best possible solutions, many millions of adults in America would have to spend forty or more hours per week studying the problems in detail, and thinking up possible candidate solutions to solve them. Voters just don't have that much time to spend on such work, and even if no voters had jobs, so they could work full time finding the best possible solutions, many people might well wish to do other things with their time instead.
So again, I don't have a good solution to the problem.
Jim