[master_crab]

I forgot where I read it, but a study years ago said something along the lines of 3-7 is the optimum number of direct reports someone can have.

[martin_a]

True!

In firefighting (in Germany) we usually stick to no more than 8 people under direct control. That's an amount of people you can take care of.

[alwaysbeconsing]

Mashup of Dunbar's Number with "The Magical Number 7 Plus or Minus One"