Which of the following statements is incorrect?

Misalignment $($between design and manufacturing$)$ may occur in labor skills $($e$.$g$.$ insufficient training$).$

In the pilot production and testing phase, customer feedback on product$/$service is sought.

Products that are very similar in appearance may be intentionally used in the wrong product.

In the pilot production and testing phase, performance to specifications is evaluated.

In the pilot production and testing phase, unforeseen problems with manufacturing are identified and resolved.