Individuals in your drafting and design groups cannot contribute to a total proejct with drawings, but with model they will contribute and benefit. Think about these not so often talked about reasons for using a model. A model can replace some drawings. You don't need drawings where the models can be used. If you use drawings the checking time can be reduced, if checked against the model.
Sections leaders can state the status of the job and no one can dispute it.
You can see things on the model that are obviously wrong that could never be caught on drawings. Consideration must be given to how serious the mistakes are when using drawings. There is no evidence that a model impairs schedule. In most cases, a model will expedite a job because it improves visibility and communication. There are fewer changes with a model because the design is better the first time round.