Supplier got the order wrong? Your problem; you fix it. Sales team can't get their act together (despite a wonderfully choreographed song and dance routine)? That's on your shoulders. People fighting? Smooth things over. Someone is only working at 103% efficiency, not pumping out enough likes and tweets and check-ins? All you to handle.
Yes, that's called being in charge. If you can't handle it all and have the means, delegate.
Brief edit: turns out this guy went to my school and is a friend-of-a-friend. Did some due diligence and friend says he's just trying to provoke a reaction (aka "troll"). He is, says my friend, "one of the hardest working people" he knows. Nothing to see here.