Working with a bad designer:
Designer: Here is the new layout
You externally: Proceed to politely explain why this design breaks logic and eliminates crucial flows etc.

You internally:

whats a good designer in your opinion?

had to work with a great designer who made things look so beautiful, these designs were somewhat doable in web, but the project manager didn't accept the explanation of 'due to the design being very advance we will need a lot of time'. Luckily I no longer work there anymore 😂