> did some analysis on past two years of my team members contributions and saw the team members that I know they are productive are modifying code a ton more th

> did some analysis on past two years of my team members contributions and saw the team members that I know they are productive are modifying code a ton more than others Depends what you mean by "productive". If you mean "appear to be busy" then yes. But by using this metric you disadvantage people who measure twice before cutting once, people who think deeply about a problem and find a simpler way to solve things. In my experience, more junior people tend to spin their wheels a lot, and out of that spinning comes out a lot of code. Code that is often broken and then is is fixed again, and again. And such people appear to be more productive and busier, at a first glance.