When Priceline first came to Norwalk they took up a floor or two in the building, the company I worked for was on one of the other floors in that building. As priceline exploded adding more and more people we eventually moved to Manhattan, leaving our computer operations there until we had all the data lines set up in New York (The Verizon strikd was right in the middle of the move, it took ages).
Priceline took over every free square foot of space we vacated with programmers for their world wide operations. Everything was documented on white boards, and no white board was big enough to hold all the flow charts. No white board was next to the other one either.
So I think what happens is what use to happen when they were having a brainstorming session. They follow the flow charts to the bottom right corner of a whiteboard, then everybody had to move over and find the next board in the sequence, pick up the color line and start following it again. We use to joke that the time for everybody to move (it was really quite a site to watch) was the delay in you getting your confirmation for the rental car or flights, since the first board ended when the credit card information was submitted, and the next one picked up with when the bank authorized the charges.