Let me just tell you that forums are one of the worst places (after most social media sites) to look for candidates to fill high-profile executive positions, because almost nobody reading this is qualified for one.
You want to place this job position on a website, and ideally you should go to a meet-up of a Bitcoin conference and make your pitch there.
Definitely the worst which means that OP is desperate to look for one, I do not think it is even appropriate for you to look for that high position in this forum, this should only be a hub for services that are more on the low level positions. What you have recommended can definitely work, there is a lot of conferences that you can attend to if you want to expand your network although it depends on where you are from because the bitcoin scene might not be that big in your country or locality.
There was a time when this would've been not just the best, but really one of the only places to find the type of person we're looking for.
I was here during those times, and I still come back now and again. So I figure, maybe there's a chance some others still do as well. It's an extremely long shot, I know and stated this in my last post, but I wouldn't go so far as to say it's just pure desperation.