Business Strategy and Execution for CIO

In Future of CIO: Business strategy and execution challenges. " ... Many companies spend significant portion of time for formulating rock solid strategies, focuses on business strategy development and puts a lot of efforts to develop a great strategy with strategic initiatives. On the other hand, strategy execution does not get the same attention which leads to misalignment with business objectives and not achieving the expected results. But more specifically, what are the business strategy execution challenges? .... '