EMS Electronics design becomes more and more difficult to do well, as we continue to push both density and speeds higher when it comes to circuit design. High-RF designs require highly precise and controlled manufacturing to produce boards capable of standing up to lengthy use, and with sufficiently low failure rates.
A company that means to make a name for itself in electronics, whether consumer or industrial, is under more pressure to perform today than ever before. The rise of the Internet and social networking has exponentially decreased the amount of time it takes for a poorly-designed product to become known as a lemon.
Previously, a company had weeks or even months before enough poor reviews accumulated to damage their reputation. Today, it's a matter of days or hours. If someone buys a poor product, one of the first things they do is tell the world about it, literally.