Just who are these change communicators?

Last week I had the immense pleasure of mixing it with some very savvy folk at my Ark Masterclass in Change Communication.  There were some terrific conversations, inspirational stories, and great opportunities for reflection. The class has a fairly diverse mix of participants, people coming from varying disciplines (change management, IR, HR, internal comms, company secretariate, public relations).  One of the activities I like to cover is "Clarity on your role". So asking - just what is the role of the change communicator and what is it not? It can be a really powerful activity that provides space to carve out some boundaries and really focus on what the unique contributions of the change communicator are.It's an interesting activity as it often raises the debate around - well who are these change communicators? Why do comms folks think they can tell us what to do in a change project? Can I be a change communicator without extensive change management experience?  What is the overlap between change management and communication.My take on it?  You can't successfully create or manage change without thoughtful, considered and inspired communication. Great change communication results from conversations between the various disciplines. There are models and frameworks in change management that comms folks must become conversant with. Similarly, there are comms theories and strategies that are critical for change management folk to employ. HR, IR, PR all add value to.  Be inclusive of the differences and create better change communication. What's your thoughts? Just who are these change communicators?