I will be using BIAB mainly to do custom jazz recordings, and render standards. That said, I want to control the drums better in terms of timing, and rhythmic patterns.

What's the best way to go about this while sounding authentic? I figure I probably can't edit real tracks, but could edit MIDI and use a sample library for the sounds.

Running on MAC, and I have logic + many plugins if I want to bring those things into the mix.