a design decision would come from collaboration, sure you can get 1st draft ready in 10-15 mins then re iterate it 1 or 2 times to see all of its pro's and cons

a design decision would come from collaboration, sure you can get 1st draft ready in 10-15 mins then re iterate it 1 or 2 times to see all of its pro's and cons are visible to you but then you would need all stakeholder's time to get it through