From customer research, enterprises are paying $500-$1,200 per “set meeting” or phone call when they outsource. We pay $1,400 per month (total) for two part timers who set meetings. ~20 successful calls (participants were qualified and understood the reason for the call) set last month from that source, which led to 5 in-person, and two large ($100k+) opportunities.
Big difference in what kind of salesperson (SDR vs. AE or a hybrid). Unit of economics need to make sense (based on deal size etc). Here’s a good overview article if you haven’t read yet, it’s super helpful: http://www.forentrepreneurs.com/saas-sales-compensation-plan/
Also highly recommend the bridge group’s bunch of sales compensation related resources here - https://www.bridgegroupinc.com/inside-sales-resources