Deutsche Bank analyst David Begleiter believes that the appointment of Ed Breen, who has been serving as interim chair and CEO of DuPont (DD) since October and was the former CEO of Tyco (TYC) during two company break-ups, as the permanent CEO means that the chances of the company being broken up has "increased substantially." Begleiter predicts DuPont will pursue a break-up into an Ag focused company and a Chemicals/Materials focused company and a transaction that combines DuPont's Ag business with either Dow Chemical's (DOW) Ag business or Syngenta (SYT). The analyst keeps a Buy rating and $70 price target on DuPont shares.