Former Twitter CEO Jack Dorsey criticized the company’s board in a series of tweets on Sunday as the group is now tasked with evaluating a takeover bid from billionaire Elon Musk.

Responding to another Twitter user describing the “plots and coups” that played out early on in the history of Twitter’s board, Dorsey replied, “it’s consistently been the dysfunction of the company.”

Earlier, he responded to another tweet in the same thread. It quoted venture capitalist Fred Destin citing what he called a “Silicon Valley proverb”: “Good boards don’t create good companies, but a bad board will kill a company every time.”