Russian 1-star general Ivan Krasnov have ability Good Population Administrator which "progressively increase the loyalty of the population over time. (+1% each turn up to 75%)". I moved this general to different regions with loyalty 40-50% and he stayed in this regions up to 20 turns. And no % loyalty never changed
Also russian 3-stars leader Mikhail Vorontsov have special ability Good Meticulous Strategist "If the CinC, this general provides +2 CP and -5% Supply Usage if active, but -1 Strategic and -1 Initiative if NOT active, to all commanders of land forces." I removed all other 3-stars generals from this theater of operations and he was the senior leader. But not supply usage of units not CP of stacks was changed there.


In the current way it is, one CinC for the entire military, the system is dictated by the ever present seniority of the top general. Real life did not always put the best man in the best job
CinC work at the theater level, not the national level... In Europe, most theaters cover more or less the whole nation, but that's not the case for large nations (see USA for instance)