The trick is to make sure you don't die waiting for prosperity to come. — Lee Iacocca. American businessman (1924–2019)
If you want to make good use of your time, you’ve got to know what’s most important and then give it all you’ve got.
If I had to sum up in one word what makes a good manager, I'd say decisiveness. You can use the fanciest computers to gather the numbers, but in the end you have to set a timetable and act.