As a Problem-Solving Tactic, What Might One Suggest to an Engineer

As a problem-solving tactic, what might one suggest to an engineer who is designing a bridge of a type never built before?

A) Design and build the bridge more slowly than is normally done, so as to have the time to solve problems as they arise.
B) Create a computer-generated model, to learn what problems may exist, before attempting the real thing.
C) Create a team of engineers and assign each a part of the problem.
D) Visualize the completed bridge in your mind.