In that context, I love giving complete responsibility to a small, integrated team of designers and programmers. They define their tasks, adjust the scope, and work together to build vertical slices of the product one at a time. This completely differs from other methodologies, where managers chop up the work and programmers act like ticket-takers.

Instead of having 10x engineers, make the team 10x. Shape Up (https://basecamp.com/shapeup/0.3-chapter-01#making-teams-res...) by Basecamp is the best resource I've seen on that topic.