When comparing fruits (armies) it makes lots of sense to compare apples to kiwis to oranges (romans to greeks to Macedonians). The article is in a series about

When comparing fruits (armies) it makes lots of sense to compare apples to kiwis to oranges (romans to greeks to Macedonians). The article is in a series about "how does a general command an army in battle". Within that series this article is about the role of officers, in battle. The officer numbers are mentioned to explain how armies acted. But how armies wanted to act is not used to explain why officer numbers were the way they were.