"He's a one-man band for all practical purposes, it's how he ran his business," said Bill Daley, a former White House chief of staff under Obama.
Trump White House wrestles with a crush of crises →
Obama's new chief of staff, Bill Daley, announced the changes in an e-mail to staff on Thursday, saying they would offer more clarity and coordination to Obama's operation.
Former Time journalist to be Obama press secretary →
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