Holacracy vs. Hierarchy in the Law Firms

Does the organizational structure matter? a. How practices and industries, where the law firm operates, influence the management system? b. Which structure is better for scaling? c. What a the pros and cons of each structure? 2) Can we change the management system in the existing sustainable firm? 3) Can different management models exist within one law firm (e.g. in different departments, practices, industries, offices)? 4) How the law firm will look like in 2030? 5) Your question?