$\mathrm{.}1$ Try to evaluate some practices for an auto manufacturer to use transportation to increase the efficiency of its supply chain? Please focus on trade$-$off between the objectives of cost and speed. $(30$ points$)$

$\mathrm{.}2$ Companies like Motorola have gone from manufacturing al its cell phones ni$-$ house to almost completely outsourcing the manufacturing. Please try ot explain some possible pros and cons of the two approaches? $(30$ points$)$