No matter how successful you become, you need to stay vigilant. Great leaders make great products and teams, and then question how they can make them even better. No visionary has ever celebrated a massive win and then ignored any or all future project complications. The best managers set the bar high from the get-go, and work to exceed their own expectations often. Complacency will breed failure, foster mediocracy, and ki-l innovation.
Intel became complacent, and that complacency bred failure. Andy Grove was right.