DuPont's breakup artist is back in the CEO role after shakeup

DuPont de Nemours is putting former CEO and current Executive Chairman Ed Breen back in charge of the company’s day-to-day operations, announcing Tuesday it’s removing Marc Doyle as CEO less than a year after he took on the role.  The CFO spot is also shifting. The Wilmington-based company’s board is replacing Jeanmarie Desmond, who became CFO alongside Doyle’s appointment, with current Vice President of Investor Relations Lori Koch. Both changes are effective immediately.  The board…