A flat structure means taking out the hierarchy of an organization – which sounds appealing but doesn't always work out the best.
Business 2 Community said, "Like an orchestra, your team needs preparation and rehearsal to find alignment. B2B research shows that aligned organizations achieve 19 percent faster growth and 15 percent higher profitability."
However, everyone at the company still needs their voice heard. Create a sales culture where those higher up are leading the way and choosing the direction, but open up communication channels for everyone to contribute.