Ask HN: Solid team ready to start a business–without a product. Where to start?

Myself and some partners have been working on a few side projects together. We've proven out that we work well together, have complimentary skill-sets, and can deliver a product from concept to execution. We're ready to move forward and devote ourselves to working together full-time, but are not sure what to work on.

Has anyone been in a similar situation, and if so how did you get past that blocker? Are there any exercises or activities worth trying?