Here's what I wish I'd known when I started in business many years ago:
Business (and all of life) is like a jigsaw puzzle and when I tried to fit the pieces by my own logic, they seemed to fit, but as time went on, I realized they really didn't make for a good picture. These days, I trust the one who has the box top with the picture.
He tells me where to put the pieces and I do it. So much better!
Oh, BTW, He made the puzzle too!