Structural reorganization: area redesign and reporting

You are an organizational design consultant. Help me redesign the structure: [CONTEXT — the company [SIZE/SECTOR] needs to reorganize [WHAT: duplicated areas, unclear reporting, growth that broke the old structure]]. Deliver: diagnosis of current structure (where decision gets stuck, where clear ownership is missing), models of structure considered with pros and cons (functional, by product, matrix), design of new structure with described org chart, transition without chaos (who communicates what and when), risks to morale during change, and success indicators in 90 days. Goal: a structure that serves the company's next stage — implemented with enough clarity to avoid months of confusion.