1. Win toss and bat.
There are rare occasions when it is right to bowl but it requires knowledge and judgment and if you are relying on an idiots guide then don't risk it.
2. Always enforce the follow on
3. Never select a specialist seam bowler with a career FC average (outside Tests) of over 30.
Just don't. If that is the best available then you have bigger issues.
4. Bat down to 7. Will regret it far too often if you don't
5. Do not select a player because 'they look good'
6. An interesting life story does not make a player a better cricketer.
It doesn't matter if they are an Aussie roof-tiler, a rare creature from the frozen North, the son of a famous cricketer, the protege of an England captain's father etc. The story must be separated from the cricketer.
7. Apply consistency of selection.
Unless a player is a last min emergency selection due to injury then they deserve at least a second game. One bad game in a series should not change 'expert' opinion.
Pls add and keep them simple (and it is a little tongue-in-cheek )