I found this expression 'intelligent execution' in a book from Bruno Aziza and Joey Fitts. The title of the book is 'Drive Business Performance' and it is about the importance of business performance. It addresses organisation-wide cultural transformation as it relates to the adoption of performance management. This book illustrates that empowering individuals and holding them accountable is an absolute must.
Without going into the conceptual part of the book (there's a six phases approach), what I like about 'intelligent execution' is that individuals must have the capability and tools that they can make well-informed decisions where and when it matters. So, all great scorecards and dashboards with flashy graphs and charts are only as great as they deliver actionable information.