New interns typically don't find out who their manager/team is until right before their internship, which varies from a few weeks before their start date to the day of. So if you don't hear from your manager yet, hang tight—they'll contact you soon!
At Microsoft, the four main engineering organizations are:
CSEO's EVP is retiring this summer, after which CSEO will merge into C+AI.
Each of the orgs are led by an Executive Vice President (EVP):
Within these orgs, there are many smaller organizations at the Corporate Vice President (CVP) level, each with their different names. For instance: BAG, C+E, M365, etc.