In info age, you are flooded with know-how; why then frequent failures? In healthcare, government, law, or recent episodes in financial industry.
It seems you do not have enough ability to manage the volume and complexity of knowledge. You are not able to do it consistently, or correctly.

Whether building skyscrapers or flying sophisticated planes; medicine or investment banking, cooking, or for that reason all kinds of professions – you need checklist for doing thing right, consistently and correctly.

In construction projects of long duration have succeeded using checklist; or, surgery to be completed in minutes.

Checklists are used effectively everywhere.