[watwut]

> Improve their communication skills, document and evangelize their work, etc.

Whether engineers do or don't do documentation and how much of it is decided by management.

Second, unless you are specific, I will assume the "improve their communication skills" is purely stereotype based. They are engineers, therefore they do not have communication skills. And we are going to pretend so even though they just communicated what they need very very clearly and politely.