Seminal article that makes the case for ambidexterity with examples of firms evolving but failing to transform (evolution not revolution). Flavours of Business Process Reengineering and some of the cases have proved to be unfortunate (eg Apple has prospered and BA was taken-over). Ignited interest in ambidexterity.
"In the long-run, managers may be required to destroy the very alignment that has made their organizations successful." P.24