Yes, focus on your strengths. I like this quote: "For years I have urged managers to concentrate their efforts in areas in which they are strong and to waste as little effort as possible trying to improve the areas in which they don't have much competence." Peter Drucker (1909 - 2005), Austrian author of management-related literature
And that takes time - basically, the 42 year old just had more time to figure out what he's good at.