Business management skills are at least as important as technical proficiency for success.
Technical skills vs. business skills. Take a lesson from major league baseball. With a few exceptions, great ballplayers generally don’t succeed as managers, while most of the game’s greatest managers came from the ranks of mediocre players. The skills required to play the game well are entirely different from managerial ability.
Likewise with the contracting business. The business of contracting requires financial, selling, marketing, negotiating, supervisory and leadership skills that have little to do with the hands-on work of putting up walls and ceilings.