"Kind of makes you wonder what all the digg employees do all day." Communication. I'm always surprised that so few people who do software (I'm talking manageme

"Kind of makes you wonder what all the digg employees do all day." Communication. I'm always surprised that so few people who do software (I'm talking management at companies) are familiar with the mythical man month. Adding employees to a software project always yields diminishing returns due to the increase in communication required.