My clan (the Hyuuga Clan) is set up that you get promoted when you get past a certain point in dragon kills. For example, when someone reaches the chuunin rank, he/she is promoted to Side Branch Chuunin. In a clan of 159 members, a lot of people are passing goals daily and it takes a while for me to change their ranks to the rightful place.
Also, we get a lot of applicants daily, so it takes a while to add four people to the clan.
If it is too much trouble or you dont think it is the best idea, then dont worry about it. I was just making a suggestion since it is slow to add or change multiple people
Stay Classy