I'll just spill some of my personal experiences of being with my old clan leader.
A couple months ago, my clan leader left Splatoon, for Minecraft and played it for 2 weeks straight, no splatoon for him, he just played Minecraft for those two weeks, so being frustrated I left the clan, and tried starting a new one with my friend at the time. We got pretty good, we had a full 4 man squad and looking good with our team comp, Me on Snipe, My friend with his Vanilla Pro, one guy with the krak-on splat, and another with a slosher.
Then my previous leader came back, he was sorry that he left, he wrote me an apology, and revamped the team, giving us ranks and stuff, and making it overall more organized. So I joined back because my clan was becoming inactive, and I've been close with them ever since, it took a couple of new teammates, some time, and some failures here and there, but we turned out all right.
So it might not even take anybody to kick, I've been on the other side of the spectrum, I was just a frustrated guy wanting to play, and I found a good clan.
Basically stay active, Recruit some squids that show promise, and you'll soar.
Hope this helped. :)