I can lay out a whole campaign before it launches, every piece mapped and scheduled. But two weeks in, when one channel is quietly bleeding money and nothing's landing, I freeze up on how to change course without blowing up the whole plan. I can build it; steering it when the numbers turn is what I can't do yet.
More people experience this than they realize.
You can plan a campaign, but adjusting it when part of it underperforms defeats you.
If this sounds familiar, the Library can help you find the bigger picture.