Just in time for the busiest sales season of the year, Apple announced on Monday that John Browett, head of retail operations, would be leaving the company. Browett joined Apple in January, and it is unclear why he is leaving the company less than a year later. The company also announced the departure of Scott Forstall, senior vice president of iOS software. Forstall will remain at the company until early next year, serving as an adviser to CEO Tim Cook. As a result of the changes, other Apple executives Jonathan Ive, Bob Mansfield, Eddy Cue, and Craig Federighi will pick up the slack.