What you are describing is what a directed acyclic graph achieves. It works well when you need to do a series of transformations. It does not work well when you

What you are describing is what a directed acyclic graph achieves. It works well when you need to do a series of transformations. It does not work well when you need branching, loops and state at a high level. The mistake people make is that they see it work very well for certain parts of their software, then they give in to silver bullet syndrome and try to make it work for everything.