Execution Is Everything
http://www.uxmatters.com/MT/archives/000314.php

Baty, Steve
UXmatters
2008

Abstract:

The number one enemy of any strategy is poor execution. All across the business landscape, the ability of an organization to execute its strategy is one of the most critical elements of success. And for an effective UX strategy, the broad range of elements requiring alignment and implementation make its successful execution all the more difficult.