[emilsedgh]

Young individual without enough skill/experience joins a team and fails miserably. Same individual joins another team and succeeds.

Skills and/or experience are _not_ prerequisite for every single individual. You need enough skillful/experienced people to create a process/culture that allows less experienced engineers to join and flourish.

[mpweiher]

If young individual later flourishes, same individual obviously has some skill (and/or talent).

> for every single individual.

I didn't write "every single individual", and for good reason. Note the story in the second part of my comment...