I think the major issue that I see, and I could be wrong is that if you want to change some underlying functionality between you and a dependent function to do

I think the major issue that I see, and I could be wrong is that if you want to change some underlying functionality between you and a dependent function to do that you would need to change all the intermediate functions only so that you could call that dependent function and layers deep. I have played around with architectures like this, but I allowed the caller to patch in a dependent function in the call with those function overlay overrides were passed from function to function. Apologies, used sst