Who should make a site based on prototypes - a designer or a coder?

Question

Project management

There are page prototypes. We gave these prototypes to the frontend developer and showed an example of the site we are looking up to (from there he should take the font, styles and coloring of the blocks.).
The front-end developer turned out to be a bad layout designer, and as a result, we rejected his layout.

The front developer says that we would hire a designer and that the designer would make layouts from the prototype, according to which, as the front developer says, he will already make a normal layout.

Our proposal was this. We hire a layout designer, he makes us layout based on prototypes, then the developer transfers all HTML, CSS to React JS (I forgot to mention that the development is on React.).
To this proposal, the front developer said that this is double work, since we pay for the layout designer and then he still transfers everything to React.

And here the question arose. Take the first path, i.e. order layouts from the designer and what would the front developer himself make up according to the layouts.
Either the second way is to hire a layout designer and already give front to the developer of the page with the layout.

What would you do?

Answer 1

A good coder can be a bad designer, because of this, many projects of one person look ugly. If you hire another layout designer, there is no guarantee that this is a good designer. Beck and front are often ordered from the same person, but the design is still from the designer, because these are two essentially completely unrelated (in terms of the product of production) professions. Order a layout from a designer and you will be happy

Answer 2

change the front
To the team that will make the finished product
If the team will consist of one freelancer, then do not be upset about this

Answer 3

I believe the correct process is:
Architect | the analyst makes a system project. Part of the project is the interface structure. The designer imposes a design on the interface structure, the UX engineer imposes specific components that implement the functionality of the interface structure, and at the end, the layout designer typesets the front in the design according to the interface structure, taking into account UX