One company I worked with we switch over from waterfall to agile. The 'guardian' of the rooms of paperwork was so happy when she could bin 2 rooms full of filing cabinets overflowing with designs no one really followed. Took her about a week to clear it all out. Hundreds of rolls of gantt charts dumped into a recycle dumpster. Basically we stopped pretending we were not redesigning everything as we went along.