Old Company. Troubled Industry. Inside the Effort to Reboot Century 21, the Real Estate Giant. Technology has threatened the real estate agent, but people still hate the home-buying process. Can Century 21 fix it?

Walk into Century 21's headquarters in Madison, N.J., and it's clear the company is in transition.

A few things seem off and slightly out of place. The walls. The furniture. And most notably, the Ping-Pong table -- that clichéd symbol of a Silicon Valley startup, which sits awkwardly abandoned in a corner.

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