[nosianu]

> How long it took somebody else in your team to solve the same problem

I don't think that is useful. Variance is too great, even for a constant single person.

I think that anything that attempts to cast this issue as some objectifiable measurement problem is on the wrong track. Measurements work - on a statistical scale. Even then its hit or miss depending on how good the chosen values to be measured are. Just like public health issues. As soon as you try those approaches that work just fine on a large scale on individual problems you are toast. The results of those individual decisions can be measured using statistical methods, but don't try them on individuals.