$6\mathrm{.}2\mathrm{.}1[5]$$$6\mathrm{.}2>$ Your job is to cook $3$ cakes as efficiently as possible. Assuming that you only have one oven large enough to hold one cake, one large bowl, one cake pan, and one mixer, come up with a schedule to make three cakes as quickly as possible. Identify the bottlenecks in completing this task.