Really good thoughts here. It definitely pays off to have a versatile skill set ranging from theory, to model building, all the way to writing & owning the prod

Really good thoughts here. It definitely pays off to have a versatile skill set ranging from theory, to model building, all the way to writing & owning the production code. If you lack skills in one area, develop it & become an expert, don't be the guy who only does Python/R/matlab etc. People with full spectrum skill set tend to be in more influential (and better paid) positions.