Huh? Isn't this School 1 already? You already think a lot at home

Like Ed says, looks like don't think when shooting but actually think a lot already before the shoot.
In my opinion, the experienced photographers can think very fast and easily on the go, so it doesn't look like they are thinking - just "whack". Those of us who are not, better spend some time to think more - because we are not experienced yet.
Thinking can also be post-shoot. After shoot already, analyze what went on, then re-try again. For me, this is also School 1, and more suitable for beginners.