Microsoft CEO Satya Nadella didn’t send a company-wide memo when the software maker laid off as many as 9,000 employees earlier this month. Now, Nadella is finally addressing what’s on many Microsoft employee’s minds: layoffs.

Microsoft CEO Satya Nadella addressed the growing internal unease inside the tech giant Thursday morning, laying out the company’s priorities and urging employees to maintain its core values, while conceding that its rapid transition for the artificial intelligence era “might feel messy at times.

Microsoft has eliminated approximately 15,000 roles since May. The company’s CEO said layoffs are the “enigma of success.”