Monsoon managing director Matt Hudson is to leave the retailer at the end of the month.
Peter Ridler, managing director worldwide at Monsoon sister chain Accessorize, will now head up both businesses.
The retailer said in a statement: “As a result of this [Hudson’s departure], the company will be reorganising its management structure and consolidating both brands under the leadership of Peter Ridler.”
A new buying and design director is also being recruited for Monsoon.
Hudson joined Monsoon as managing director in April last year after leaving Marks & Spencer where he was trading director for womenswear, lingerie and girlswear.