Twitter Constitution and Appointment of the Board of Directors

I've been trying to figure out whether Musk can or cannot place people on the board given his 9.2% stake.

All I can find is Twitter's original articles of incorp in 2007

https://www.sec.gov/Archives/edgar/data/1418091/000119312513406804/d564001dex32.htm

https://content.edgar-online.com/ExternalLink/EDGAR/0001193125-13-406804.html?hash=bf23bf407c6dbe985a832e01acebb571532ac2c986b712ebdf612cf322c8671a&dest=D564001DEX41_HTM#D564001DS1A_HTM_TOC564001_8

Basically from reading it Twitter's structure will not allow him even as holder of 14.9% and having 3 or 4 partners holding around 10-15% (a likely scenario) in total to fire get rid of the board and since they use a 3 class structure, it will take 2 years if he is able to sway the shareholders to vote his way to replace the board.

Is an alternative to be able to control 50%+1 and call an extraordinary GM, and fire the board with cause?