Once you decide on something you have to act. Procrastinating important decisions makes it harder to decide later.
If you do not set the tone of accountability and consequences your team will take it easy and slack off. You do not want to be a police force but rather an inspiring force.
Having crystal clear goals, a feedback loop and result oriented approach is the way to go.
This is a fine balance and something you have to navigate all the time keeping in mind the different personalities who need to be managed accordingly.