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What do you think is causing Braddock's problem?
There had been two changes in the production process which may be causes of the creases in the wheel borrows. There was a change in the material from a new supplier. The malleability of the new metal sheets may not be compatible to the stamping machines. The other change is the replacement of the machine operator; the new operator may be making mistakes in his work. The most likely cause is the new metal sheets and one clue is that it appeared first in the construction model whose inventory gets replaced 3 days ahead of the ...