I see this often in many areas. Perhaps they'll be lucky and have a few behavioral psychologists among them to maintain intellectual humility.
They don't have "domains", they are career politicians. It is nice when a politician has some experience in the topic they're legislating on but the system works by having generalists who bow in whatever direction winds are blowing the most money from.
It is not possible to be an effective career politician by having firm principles or technical expertise. It requires a near total dedication to politicking. If they happen to have knowledge of a topic it is coincidence because the number of political topics is large and the number of politicians is comparatively small.
Best case would be multi-talented persons who have both IQ and EQ and good character. Just IQ is not enough.
Intelligence is a tool - one that can be put to use against any problem. "Get diverse people to come to the table for compromises" is no exception.
Intelligence? Problem solving? Understanding statistics? Speaking in front of rooms full of people? Communicating complex ideas clearly? Useful for both jobs.
But an academic can be bookish, shy or haughty. Pursuing your own ideas is actively encouraged. There are arguments - but the main audience for the debates are other academics. They needn't collaborate on research with anyone they don't want to, and when they do collaborate everyone has the same destination in mind even if they disagree about the route to get there. When dealing with students, they've all chosen to be there, passed exams and paid money. The work is mostly low-medium stakes, with time to get important things right. And of course they have excellent job security.
Politicians, though? Gotta love campaigning and talking to voters. Gotta all get together behind the party's national platform. Even colleagues in your party are rivals because everyone wants the top job. 'Debates' all about playing to the audience and getting 3-second soundbites for social media, not engaging with the substance of arguments. No choice in who you collaborate with, including people with deep-seated disagreements about things like tax, debt, spending. Gotta represent voters many of whom hate you. Do well at the job and high stakes things you didn't even do get blamed on you, like train crashes and oil markets getting expensive. Oh, and every 4-5 years you're fired and get to re-apply for your job.
There's no shortage of haughty politicians either.
Both government and academia know how to navigate this well - by avoiding accountability.
Definitely a risk, but politicians are professionals at being overly confident. With this selection (there are not only PhDs, and not only academics), there is actually a chance of... actually trying to understand the problems?
Being ruled by the career politicians is NOT an advantage, and the innumerable examples from all around the world will prove that.
It's a pity this disclaimer cannot be made to serve as a header for about 99% of the comments here today, because, holy shit...
Keep into account that the baseline for governing Serbia is low. As long as they can lower the corruption, they can do a lot wrong and still come out ahead.