> What I don't understand is how Jack Dorsey could believe he could successfully manage two companies, Square and Twitter, at the same time at such critical poi

> What I don't understand is how Jack Dorsey could believe he could successfully manage two companies, Square and Twitter, at the same time at such critical points in their growth. I just shake my head at the unbridled hubris and over-estimation of one's own abilities that one must have to make this decision. Blame the board, too. They are the ones who decided to approve the hiring of a CEO who wanted to keep his other full-time CEO job. If Twitter fails, the board will be just as much to blame as Dorsey. I'd be pretty unhappy about this if I were a shareholder. I don't care that Dorsey was a founder. It's just not responsible for a board to hire a CEO who isn't dedicated 100% to the company.