Kathy, the largest I have managed was 10-15 (the number fluctuated) but I also had indirect/shared oversight of contact centers with 100+ people. I think these principles could have helped with the definite feeling of "overwhelm" that comes on sometimes when you are supervising so many. I have HUGE respect for bosses who can keep the big picture in their sight while making individuals feel like their "small picture" needs and challenges are being addressed. It's a hard balance I think. Thanks for your comment!