Thomas Jefferson took inspiration for our system from Jethro's advice to Moses:
https://www.biblegateway.com/passage/?search=Exodus%2018%3A1...
Here's the elder requirements under Christ. Notice that teaching and character are the main focus.
https://www.biblegateway.com/passage/?search=1%20Timothy%203...
Which character traits in the baove passages do you think lead to good leaders? Which do you reject as wicked? I think, and have seen, that they all lead to good outcomes.