All tech companies I've been at have had this challenge of churn.
As an engineer, the deeper the experience in a field, the more business value you can create (all else being equal). So when you switch speciality, value creation is going to take a hit. Some skills carry across directly, others take months/years to acquire.
This is why companies can simultaneously be hiring teams and firing teams at the same time.
If the team is doing something critical for the business strategy, they need to be on-point straight off the bat. That normally is achieved by buying start-ups or doing deep partnerships. (MSFT + OpenAI comes to mind).
As an engineer, the deeper the experience in a field, the more business value you can create (all else being equal). So when you switch speciality, value creation is going to take a hit. Some skills carry across directly, others take months/years to acquire.
This is why companies can simultaneously be hiring teams and firing teams at the same time.
If the team is doing something critical for the business strategy, they need to be on-point straight off the bat. That normally is achieved by buying start-ups or doing deep partnerships. (MSFT + OpenAI comes to mind).