> As an aside, I am bewildered by the the idea of a CS PhD holder who literally cannot code in any language. But short of seeing their CV, who knows. Maybe they specialized in the more theoretical math- or EE-like areas of CS, and their undergrad data structures course was a distant memory?

One mostly did neural network research and said his coding was rusty so he has having issues. The other I honestly can't remember. But yeah I'd assuming coding was pretty important but I kinda got the impression from both of them that maybe they had underlings do the grunt work or something. But not entirely sure.