I know two MIT grads that then went on to work at Boeing as mechanical engineers.

They are not impressive at all on almost any subject you talk to them about. Not for Boeing engineers and definitely not as MIT grads.

I don't think they could handle the coursework at Cal IMO, and I thought MIT was even more difficult.

They do seem like a very good example of diversity DEI type admission and hiring. And these kinds of Boeing problems might be the result.