That's one (important) aspect. When looking at a team or individual I check wiki contributions, design documents, commits, code review feedback provided to othe

That's one (important) aspect. When looking at a team or individual I check wiki contributions, design documents, commits, code review feedback provided to others, ticket queue depth/volume, "cm" volume, customer forums, broadcast sessions, and org role/level/tenure blend. Also for teams get a referral or just send a "cold" email to have coffee with an IC on the team. I'd hazard that most of those data sources work for most of the teams at Amazon.