I'm pretty sure Satya consulted with an army of lawyers over the weekend regarding the potential issue.
Part of suing is to ensure compliance with agreements. There is a lot of IP that Microsoft may not have a license to that these employees have. There are also legitimate questions about conflicts of interests, particularly with a former executive, et cetera.
> pretty sure Satya consulted with an army of lawyers over the weekend regarding the potential issue
Sure. I'm not suggesting anyone did anything illegal. Just that it will be litigated over from every direction.