If a master cabinet maker's work is indistinguishable from an apprentice's work is there not a problem? If you spend 20 years doing the same work, do you have

If a master cabinet maker's work is indistinguishable from an apprentice's work is there not a problem? If you spend 20 years doing the same work, do you have to be a 'brilliant outlier' to have insights a junior person doesn't? edit spelling/punct.