Maybe if they made 2-3 times as many paradigm rolls, and let us have like 20 of them active at a time. That way they are much more specific and allows for some personal taste in how to get stuff done. Right now there is only one way to do anything.

What if there were a few classes that could heal, one specialized in AoE, one direct healing, one esuna and jazz. Now when setting up paradigms you would have to think, "what will I need most when I use this". There will actually be some trade offs when setting up the paradigms, requiring some though. And you could tailor the AI much more towards your liking.
Instead of just a SEN you could have one that specializes in locking down bosses, one that specializes in AoE crowd control, and one that specializes in counterattacking.