Another negative aspect of a team relying on The Hero is the "knowledge black-hole" effect. The Hero writes a lot of code, often poorly documented, and builds t

Another negative aspect of a team relying on The Hero is the "knowledge black-hole" effect. The Hero writes a lot of code, often poorly documented, and builds these fragile cathedrals in his mind. Then suddenly he leaves the company/gets sick/etc. and the undocumented, full of scary TODO/FIXME codebase stays behind. The rest of the team is afraid of touching it and the cathedral eventually crashes.