Well I imagine that it could work without ensuring anything. If sortition would be used to get people to serve in parliament. Then it works as usual because pa

Well I imagine that it could work without ensuring anything. If sortition would be used to get people to serve in parliament. Then it works as usual because parliament consist mostly of people who don't need to be qualified at all. They vote for prime minister and then that prime minister assembles government with ministers that are qualified specialists. In the end parliament votes if they trust that selection of prime minister and done. In the end I just came to conclusion that whole voting for parliament members is useless because I can imagine it would not be much worse than random selection from pool of interested people. You also remove issue with people who are handing out places on voting cards because a lot of people just vote on the first person on the list of political party. I can imagine political parties are not going to change status qua :)