The machinery that daesun buys is much more efficient than cedric’s machinery, so daesun often has downtime while he waits for cedric to shear more sheep.

Cedric's low performance is a drawback for Daesun.

Explanation:

Specialization helps to increase an individual's efficiency. But when two or more individuals work together and their efficiency levels are different, coordination problems can occur.

In this case, Daesun is much more efficient at shearing sheep than Cedric, which results in Daesun having nothing to do while waiting for Cedric to finish his job. This issue can be solved either by Daesun specializing in shearing sheep and Cedric doing something else, or Cedric improving his performance so that it matches Daesun's.