The office ecosystem is an unusual place. The building where I have my office is large by any standards. There are roughly 100 different companies with more than 500 actual people working for them. You could assume that an environment like this would adopt all the benefits of a co-working space, but not everyone is onboard. Agencies often complain that they are not comfortable having their clients so close to their competitors. Instead, I believe they should focus on the value they get from having great relationships with these other companies.