Comment by toddwahnish

I can only talk from personal experience- I've never seen a founder that's been completely happy with outsourced UX/ UI. In the end, it's really tied to the type of site that you're developing. If the design is integral to the experience (like a music or design site for example), then don't outsource. If the design is purely tied to the data and the way the data is arranged for consumption, then maybe.