“I regard myself as a big-picture manager. How do I make most of this skill?”

Round this skill of yours; complement it with a healthy respect for detail.

When your natural ability trends towards strategic flair, you face the danger of tripping over practical detail.  It’s easy to call it tedious or boring, but the fact of the matter is that a whole is made up of important parts.  Ignoring these parts is always expensive.

Surround yourself with ‘nitty-gritty’ people, and empower them.  Make sure that the systems in your business measure and monitor the particulars accurately, and don’t override them.

Vision is about direction, which is essential.  Attention to detail provides reliability, which is productive.