There's more to starting a project than dreaming up new features. Yes, starting a project actually takes work.
You're right, everyone loves dreaming up new ideas. However, people who can put those dreams into motion are rare. I'd honestly hire a person who can start a project before putting it off onto some poor slob before I hire the poor slob. Why? Because poor slobs are incredibly easy to find. Starters aren't.
Maybe this is a function of who I hang out with, but I haven't found poor slobs to be incredibly easy to find since I left the public school system. And would you really want to hire the poor slob at all?
Ideally, your organization would consist only of people who can both start and finish projects. Something seems to get lost in translation when you have one group of people responsible for starting projects and another responsible for finishing them.
(Disclaimer: this may not apply to big companies. I can think of a few people within Google that I definitely would put into the "starter" category, and a few more that I would definitely put into the "finisher" category. Google is big enough to support that division of labor. Your startup is probably not.)
You're right, everyone loves dreaming up new ideas. However, people who can put those dreams into motion are rare. I'd honestly hire a person who can start a project before putting it off onto some poor slob before I hire the poor slob. Why? Because poor slobs are incredibly easy to find. Starters aren't.