In its most fundamental ...

In its most fundamental sense, execution is a systematic way of exposing reality and acting on it. Most companies don't face reality very well. ... Realism is the heart of execution, but many organizations are full of people who are trying to avoid or shade reality. Why? It makes life uncomfortable.
 Lawrence Bossidy

Quotes from the same author

Execution is the ability to mesh strategy with reality, align people with goals, and achieve the promised results.
 Lawrence Bossidy
Execution is a systematic process of rigorously discussing hows and whats, tenaciously following through, and ensuring accountability.
 Lawrence Bossidy
I saw that leaders placed too much emphasis on what some call high level strategy, on intellectualizing and philosophizing, and not enough on implementation. People would agree on a project or initiative, and then nothing would come of it.
 Lawrence Bossidy