One way I'd frame it: fractional reps can cover activity, but someone has to own the system that makes activity compound. I would not hire an end-to-end commercial owner until you can name the repeatable wedge: who buys, why now, how they hear it, and what evidence says the motion works. Until then, keep founder-led selling close and maybe hire a builder/operator who can tighten positioning, pipeline instrumentation, and partner tests. What part is breaking first right now: message clarity, source of qualified conversations, or conversion after first call?