Treat everybody respectfully.
Like Syag says, listen to what people tell you. The ones who are in the loop often have the best input to change/improve things. Eizeh hu chochom? Halomed mi kol odom. Everybody will have something you can learn from them. You are not the king. You are there to lead them and make sure they are producing to their utmost.
Hatzlacha rabba! and Mazel Tov on your going up in gedulah!