This totally ignores values and motivations, and I would argue that only one group in your comment values winning at any cost.
We all know which party is fighting tooth and nail against that on practically every issue that affects it.
My prior is based on experience. Most of the civilian govies are centrist, "I just want to grill" types.
Elections are run by Republicans as well as Democrats. In fact several of the key locations that Trump claimed were stealing the election from him were basically locations where the Republican party had a lock on the administration of the election. As I remind people often, when they talk about someone stealing the election, that's not a hypothetical "someone," that's Betty three houses down that has the nice flower garden and organizes the bake sale at church every month.
Second, your solution was in place in the 1800s and was referred to as the spoils system. It led to bad outcomes and was rightfully abandoned. Your beef is with the fact that educated people tend to choose policies that you don't like (assuming your 90/10 split, which is still wild). You/the GOP have three options. First is to recognize that the policies pursued do not attract people which education (which I consider a red flag). Second is to re-adopt the spoils system despite it being illegal, and frankly just sort of dumb since when the other side is in power you suffee, but at least then you never need to think deeply about making policy for the whole country instead of a subset of supporters. Third, you/the GOP self-own via tearing up all the intellectual capital and international good will built up over the decades without a replacement, massively reducing American influence on the world in all dimensions.