A common mistake companies make when rolling out a new culture of continuous improvement is to fail to provide leadership training to the people leading it. When you're responsible for leading a cultural transformation, there are a lot of unique leadership skills that you need to employ.
You need to be firm and empathetic, have high but reasonable expectations, communicate effectively, be present - the list goes on and on. It's a hard balance to strike, particularly for people who don't have a lot of experience in a leadership position to fall back on. As such, many leaders cave under the pressure and are either too hesitant to be effective or else become huge jerks that no one likes or respects.
Here are some tips for how to be a strong leader without being a jerk: