The business landscape is littered with the carcasses of companies that refused or failed to adapt to change. The last Blockbuster Video standing in Bend, Oregon is a stark monument to how quickly that fate can lock in and ruin a company and pave the way for more agile and forward-looking companies. The kicker: Netflix,

One of the biggest concerns about maintaining mainframe legacy code is that new developers, and even many of the older ones, don’t really understand what the code is doing for the business on a detailed level.  Even if documentation exists, it isn’t enough to ensure that changes to the code won’t eliminate an important feature,