Expected, Bungie is a fully owned subsidiary of Sony, so it's normal that Sony will put some of their folks in Bungie, and that will move some Bungie guy to other place in Sony.
I assume that in this case what this guy will do will be to integrate Bungie's marketing inside SIE's marketing team and marketing roadmap.
Was wondering how this was gonna manifest.
So Bungie keeps its board and adds Sony peeps to it. Interesting. They have that cbs woman on there too.
I believe they just replaced the person in charge of destiny ip adaptation for tv/film with someone from Sony as well. Related? Probably.
In big global corporations, many divisions, regional offices or in this cases publishers or development studios are companies too. Fully (like in the case of Bungie) or partially owned by the global corporation, but still companies. So they have their CEOs, board of directors, etc.
After an acquisition typically the acquirer puts someone of their folks between the higher ups of the acquired, and since when hiring companies prefer to hire a guy from inside the corporation than from outside (mostly because requires less training / integration time, which increases productivity), typically there's some small rotation between their different teams.
In this case, maybe some folk moved from Insomniac to ND or from MM to Sony London in that internal rotation, now they can move easily from or to Bungie.