Lots of people are Jacks of All Trades, but masters of none. Take, for example, the Ocean's Eleven/Twelve/Thirteen movie franchise. Everybody had skills and roles to play. It wasn't possible for one person to be in all places all the time, nor was it possible for a single person to perform each job.

This blogger...lots of attitude, but doesn't sound like a team player. Attitude will take you only so far.