After spending months frustrated at how empty Yahoo parking lots were, Mayer consulted Yahoo's VPN (Virtual Private Network where workers can use it to securely log into Yahoo's network and do work) logs to see if remote employees were checking in enough. Mayer discovered they were not — and her decision was made.When is the last time you checked your VPN logs or parking lots? Could your workers be slacking off?
Read: How Marissa Mayer Figured Out Work-At-Home Yahoos Were Slacking Off
Illustration credit: Marissa Mayer's Twitter page