Engagement & value

What kinds of engagement improve value?

My colleague asked me what I mean by value. Value on a project is

• finishing it near time,
• near budget,
• achieving all or most of the original objectives.

Engagement adds value if it improves those outcomes or helps them.

I assume that when people do engage, that effective engagement increases the effectiveness of projects. But some engagement isn't necessary. It's the wrong kind of value adding activity. It's inappropriate. Appropriate engagement strategies are most valuable.