First, have fewer rules not more. More rules and regulations lead to more rule breaking and troublesome rule breakers. More rule breakers leads to more disciplinary actions, conflict and turmoil. So, be sure the rule is worth the cost if the rule is violated, because it will be eventually.
Second, know the difference between preferences and convictions, between opinions and the non-negotiable, between the flexible and the immutable. These will be different depending on the group or organization but the distinctions must be made. If not, there will be unnecessary conflict and conflict always exacts a price. So choose your battles wisely.
Take Away: If an argument, debate, or conflict has the potential of damaging a relationship, especially important relationships, then the leader better make sure it’s worth the cost.