Check out the above link for a quick and interesting article about the Number Robin Dunbar is credited with defining. Basically, he asserts that people can only maintain about 150 meaningful relationships and beyond that the connection deteriorates.
I’d observed this same principal when I noticed how small churches that are very focused on their pastor ‘max out’ at around 200 members. I said that in a scenario like that, there are only so many people who are able to genuinely connect to the pastor or leader. When his limit is reached, it cuts off new people to the ‘appeal’ of that community. Those who come in after that number has been reached, never feel connected and simply drift away to another church or community.
I think it’s important that we are mindful of these kinds of numbers when we think about our own leadership and relationships.