It has always been so.
The father of the modern manufacturing revolution, W. Edwards Deeming probably said it first in a management setting, that led to lean, the TPS, 6 sigma, and a host of management articles, cliches, and learned papers, but it has been said before, in many ways. It is also a core component of the Balanced Scorecard.
Measuring advertising has always presented a challenge, throw an ad schedule on the box, and hope it works, has been the dominant method for many years.
Now we have the net , and a whole new set of measurement possibilities across websites and social media platforms. Like anything, simplicity is the gold standard, finding a few measures that get to the heart of the performance is a real challenge for management, as differing measures for differing platforms, differing markets, and platform/market/interest dynamics are always required, there is no pro forma to be used here.