I think that the functional org structure is the most effective structure. This way, you can hire experts in their respect fields who don’t need to know too much about other parts of the company. Granted, it’s important to understand certain basics, but in other forms of structures, each different person has to have a really good understanding of all aspects, where these types of employees are both difficult to find and usually require a higher stipend. Whereas those who are experts in just their fields are all thats required for the job at hand. For example, the services employees don’t have to have a deep understanding of the market or sales strategies, and vice versa.