Tellingly, neither housing agency has closely examined alternatives to demolition, like renovating some buildings in the complexes and replacing others.
In 2008, the current owners remodeled the house as an open-plan contemporary by removing several interior walls and replacing others with low-lying glass partitions.
Starting at the top, JPMorgan executives are eliminating jobs at their own bank, redeploying some people to other divisions and replacing others with Bear Stearns workers.
A middle ground is to stay but reduce costs, by pulling out troops as Iraqis prove they can fill the gap, and by cutting costly American contractors no longer needed, replacing others with lower-cost Iraqis and subjecting all to a strict cost-control regime.
An interesting characteristic of this approach is the possibility of adding new elements into an existing model, and replacing others with more appropriate ones, thus allowing potentially complex models to be built from simpler parts.
Sometimes these were rotations, with new soldiers replacing others who had returned to Rwanda.
