> What do you imagine he could have done about the board of a non-profit as CEO and fellow board-member?

As board members, both Altman and Brockman would have presumably had to vote on any changes to the board - including reduction in number of members and appointment of new members.

Do you think the composition of the board before Friday could've been reached without some level of support from Altman and Brockman?

As CEO and a board member, he was better positioned than literally anyone else to move changes to the governance structure of the nonprofit.

Nevertheless, the board doesn't fall under any CEO's "watch" (even when they are 1/6th of the board). The reverse is true.