"This study did not take considerations into the additional activities that purchasing the rotor from the supplier would cause. For instance, inspection cost cannot be entirely saved from the entire manufacturing process. Even if we can eliminate the inspection cost on the production floor, we still need to inspect them as incoming parts in the receiving area. Conseuqently, I am doubtful that we are able to save all inspection costs."

1. In your opinion, provide comments on this remark and suggest two improvements on reducing inspection costs.