Erm, how to put this delicately...it's difficult to design and construct a bridge or refinery in two-week sprints. These are projects that span years--you bet

Erm, how to put this delicately...it's difficult to design and construct a bridge or refinery in two-week sprints. These are projects that span years--you bet your hat that they do that design work up-front and try not to make changes otherwise.