Dean Foods has announced that its chief operating officer and president, Joseph Scalzo, has left the company.

Scalzo, who left Dean Foods on 25 February, the company said yesterday (1 March), is the third top official to leave the US dairy processor in the past four months.

The news follows the departure of CFO Jack Callahan in November, while Harrald Kroeker, the head of Dean Foods' fresh-dairy operations, left the business in October amid a broader rejig of the company's management team.

Dean Foods, which has struggled to deal with falling milk prices and rising input costs, said Scalzo's departure comes as it reorganises management to act more quickly and decisively, while keeping costs under tight control.

Chief executive Gregg Engles will takeover Scalzo's duties and a replacement will not be named.