Encouraging developers to wear multiple hats makes for happier coders and stronger companies.
Developers could learn a lot from Charles Lloyd. As legend has it, the jazz saxophonist was known to rotate the musicians in his band during concerts in the 1960s. When the group returned to the stage for an encore, the drummer would would sit down at the piano, Lloyd sat behind the drum kit, and pianist Keith Jarrett would pick up the saxophone that made his bandleader famous. The stunt not only wowed crowds, but it made each individual player that much more versatile--and the group as a whole much stronger.