My advice to those hiring HoM for a B2B startup:
1. Hire a performance marketer (i.e. leads, revenue focused), not a brand marketer. Your sales team needs leads to grow, not "brand awareness". Once you've got a nice flow of leads, that's when the softer side of marketing becomes important.
2. If they are focused on how big of a budget they'll get, that's a major red flag. The first channels should not be paid. Budget needs to be small to start -- once you prove ROI/traction, it's now a conversation about scaling quickly, and not about blindly throwing money away.
3. A quick look at their resume or LinkedIn should tell you everything you need to know... is it full of numbers/data, or is it a list of tasks & buzzword bingo?
4. Hire someone who can do everything themselves. Make sure they won't need to rely on agencies.
Edit: Regarding the article's recommendation about hiring ICs to perform smaller tasks. I personally would find this unappealing because it means I can't build my own initial team, and I'll need to investigate what those ICs have done so far -- have they made poor decisions I'll need to undo?