Microsoft

Career development, career opportunities, visibility, project opportunities, exposure to technology, a great company with a great history and legacy, great leaders, great benefits, a great location, an international working environment, industry leader, research leader, leader in the scientific and computer sciences community in the world, popularity, a successful company, a powerful company, job security, diversity, etc.

Too big a company, too much competition. Performance assessments and their limitations, too much work at times. Still not as aggressive as Google.

Become more agile, focus on research. Let people work on projects they want to work on and gain the kinds of experiences that they would like to gain. Let them work in multiple roles depending on need and utility.