As I write in my blook on law department structure, “In U.S. law departments, the number of direct reports to the general counsel rises gradually with the number of lawyers, but plateaus at around six.” What accounts for the number of reports to any particular general counsel?
Assume a general counsel arrives in a 50-lawyer department with a magic wand to wave and create the best structure of her direct reports. This scenario ignores the powerful forces that shape reporting lines of corporate tradition, size of the law department, and HR policies. That said, here are most of the remaining factors.
Business structure: the number and size of business units that would benefit from an oversight lawyer (indeed, the decision whether to organize the department by legal perspective or by business organization and function).