Can I perform corrective training on my team leader for a legitimate reason if I have more TIS + outrank him?

Is your Team Leader a PFC? Or a SPC as well? Here is why I ask: Sit back and think about why someone that you outrank and have more TIS than them are sitting in the Team Leader spot and you aren't. Also, if there is a legitimate reason for needing Corrective Training, that is one of the other reasons a Squad Leader position exists. You are literally about to step outside of your lane. They are in charge of the Team, not you. Let the Squad Leader handle this issue.

SGT (Join to see) Apparently, you still have a lot to learn about being political.

There are often other ways besides direct action to solve problems.

Have you discussed the situation with your leadership?

Even I have a 1SG, I wouldnt for a second think about using my rank for that purpose.