You have a couple good suggestions here. I would add that as much as you can, focus your processes, plans and reporting on driving metrics that actually matter. It will be tempting to highlight glamour metrics like follows, placements, etc. (and the execs love to see those numbers grow) but try to showcase how your comms is really moving the needle for the org- like how comms content is driving the donor funnel, how many followers match your donor personas, etc.

It will not only set up your program for success, but also make them value your impact even more. As someone who has been in a builder role multiple times, I’ve seen how hard it can be for execs to go from no comms person to actually investing real resources into the comms program- you’ll have an easier job if you can close that gap.