I think this is somewhat related to how Google lost to Facebook in the social space. Google already had Orkut with them. Similarly the idea of Google drive wa

I think this is somewhat related to how Google lost to Facebook in the social space. Google already had Orkut with them. Similarly the idea of Google drive was floated around in Google as early as 2008. But it took the Advent of Dropbox for Google to realise what they had missed. Same goes for the public cloud. Although Google had the app engine, they did not aggressively invest in it. Azure clearly over took Google in cloud space. I am sure there would be many such examples from all the Tech Giants.