Hi @awah, this situation you raise is somewhat difficult for some people to address. Well, not everyone has the virtue to lead a team, I will tell you what my dad says "There are those who are born to command and others to serve". So if you don't know how to make decisions, you will have to work with that kind of people.
However, my particular opinion is that if I cannot help that person to perform his job better, I would do it before making the decision to fire him. Regards