Let's imagine, for a moment, I've received a letter of complaint from some students about a colleague. The students meet with me, and say that their instructor didn't give them a syllabus for the class until after the fourth week of classes, and they spent the first four weeks of classes doing "introductions" to "get to know each other."
They also note that the instructor's a really nice person, very kind and supportive.
The instructor's supposed to be teaching reed management, but spends most every class session on reed dying, though the big project is on reed management, which (they say), they aren't spending much time on in class, even though it's a really complex subject.
That big project is coming due, and they've asked for help, but didn't get it.
They asked me specifically not to talk to the instructor until after the semester ends, and not to use their names.
And did I mention, the instructor's a full professor?
As a chair, and especially a new chair, I really don't know what to do. I think an email to the Dean is in order.