When backpacking with more than one or more other people and sharing a tent, make certain that each person has enough of the tent to make a shelter if separated from the other people in the party. This is important for being able to find cover if night should fall before reuniting. Perhaps one person could carry the ground cloth, one carry the tent canopy (a.k.a. the body), and one carry the fly. Everyone should be carrying string/rope/twine that can be used as guy line, and there are usually sticks and/or small trees available.
Of course, sticking together works too. We all try to plan on that, but it's always good to prepare for difficulties.