The work of creation involved the whole Godhead. No individual is inferior, yet team leadership doesn’t eliminate the value of a principal leader or director. The team together has all the gifts and capabilities necessary to lead effectively.
In the desert with little water and scarce food, it is a struggle to survive, and that can lead to discouragement. God never wanted life for Jewish leaders to be such a struggle when they came back from Babylon, but they were measuring their problems against their own puny strength rather than measuring them against our mighty God. They forgot God is much bigger than any struggle we face.