Associated Press: Jack Dorsey would have to give up his post at Square if he’s to become CEO of Twitter. The company he helped found and now leads on an interim basis said that it is only considering candidates who can make a “full-time commitment to Twitter.” While some analysts expect Dorsey to be hired to the permanent post, this would mean giving up his job at Square, the payments startup, and Dorsey has not indicated that he would do this. He said in June when he accepted the CEO post that he will continue to lead Square.