[ska]

Truly ideally you have someone/team who actually can do both properly. However, very few people can. And if you have one, you may not be able to justify their time on all aspects.

So the compromise is usually as you describe, but you bear the cost of translation issues no matter how you do this. It's worth remembering that it is a compromise.

I think systems like tensorflow are implicitly a recognition of this, allowing lower impedance between the groups.