R’ Moshe Sofer zt”l (Chasam Sofer) would say: “'ויאמר אלהם מרגלים אתם לראות את ערות הארץ באתם' - The Rishonim ask how can Yosef hold his brothers in Mitzrayim for 3 days if his father is home and doesn’t have any food? The answer is that they really did have food and Yosef knew that from his first dream of the bundles of grain. This is why the posuk says right away that he remembered the dream, referring to the bundles and that they had enough food. Thus, the only reason they are coming now must be because they are spies.”
A Wise Man would say: “Good leadership consists of showing average people how to do the work of superior people.”