PJT Camberview - Strategic Investor Relations (STIR) - comp/culture/exit?

I understand the position in so far as I have read up about activism defense/ shareholder advisory across the internet and on WSO, but that about sums up my familiarity with these departments. Some people on WSO have remarked that they see exits to that, which I was not able to confirm through linkedin. I don't think thats a question? 

My understanding is that they are engaged on a flat fee basis (at least at PJT) to advise companies (primarily IR dept) on messaging (think IR day decks, what targets to set, how to give the right impression to investors and how to better tell the story of "why buy our stock"), as well as with ESG strategy and other corporate governance issues. The other side is in defense against M&A/activism campaigns, which admittedly I am less familiar with how one would provide good advice against defending something like this. I would guess it is the similar camp of advising companies on how to craft a new story to investors and the institutions that advise for proxy voting. 

Someone had mentioned that STIR spends time intimately with companies on their corporate strategy / story telling, and that it involves updating earnings models and pitching things like alternative capital allocation strategies (you obviously need to demonstrate how you are looking to unlock value for the investors). In that scenario, where you have someone with some small LO buyside experience, and then the branding of a quality investment bank whilst doing some more of that modeling scenario analysis, I could potentially see a path to working for different buyside firms.

I also get that it could only be very soft skills on just how presentations look and vague messaging. So too much qualitative analysis that doesn't go along the lines of proving you can model multiple investment scenarios, and that a HF exit is unlikely. 

Precisely what I am looking to confirm - how familiar are you with these groups?