Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity.
- Gen. George S. Patton - on Leadership
It is a tough lesson to learn in leadership but it is OK for people to do a thing their own way, don't expect the team to do things the way you imagine, encourage their ingenuity. As long as the goal is clear you will be able to work with the team to measure the result against the intended goal and you'll help them grow. You never know, you may learn a thing or two yourself along the way.