Tue, 11/21/2023 - 05:37 Tech Insider Linda Yaccarino was named the chief executive of X, formerly known as Twitter, in May.Jerod Harris via Getty Images; Kirill Kudryavtsev/AFP via Getty Images Tags Tech Insider, insider-news, elon-musk, twitter, x, linda-yaccarino Source Linda Yaccarino is asking X staffers to be 'as fiscally responsible as possible…