Starbucks said Friday it plans an unspecified number of layoffs as it restructures its corporate staff. In a letter to employees, Starbucks Chairman and CEO Brian Niccol said the Seattle coffee giant needs to ensure all work has a clear and accountable owner who can make decisions. The company also needs to reduce complexity and silos.

Coffee chain Starbucks’s promised overhaul may require cutting jobs as it tries to work more efficiently, CEO Brian Niccol said.

Starbucks CEO Brian Niccol said Friday he expects a round of corporate layoffs will come as soon as this spring, as the company streamlines operations in an effort to turn around performance.