The foxhole principle
When a foot soldier positions himself/herself on the battlefield, they build trenches to hide from the enemy. But here is a teamwork principle. Build a trench big enough for you and a friend because when the going gets tough, a friend is there to watch out for you, watch with you and this will help you in fighting your personal battles.
The Foxhole Principle states: When preparing for battle, dig a hole big enough for a friend.
I first heard this statement in an online training by John Maxwell. Hope it helps you in your journey as well.