These have been my exact thoughts as I've started working with Arduinos and looked into starting a robotics shop -- I can learn to do everything, etch frame solder code make each component myself, but I get passed up by teams of specialists like the Spark Core [1], who are focusing solely on that component.
Thinking of times when I've worked on teams, I've succeeded because I could leverage the synergy of my multiple disciplines, excuse me, because I could take ideas from different fields and use them together. But teams of generalists are just wasting their time, as each generalist will just be specializing in one area or another, and a specialist in that field would be more effective.
Generalists do make good managers, teachers, librarians, etc.
Thinking of times when I've worked on teams, I've succeeded because I could leverage the synergy of my multiple disciplines, excuse me, because I could take ideas from different fields and use them together. But teams of generalists are just wasting their time, as each generalist will just be specializing in one area or another, and a specialist in that field would be more effective.
Generalists do make good managers, teachers, librarians, etc.
[1] http://www.sparkdevices.com/