I don't know if you want to re-write it. Having to identify all the use cases for a system that large will be horrific. Especially since people have build onto

I don't know if you want to re-write it. Having to identify all the use cases for a system that large will be horrific. Especially since people have build onto the broken ways. And a large customer will require that it be exactly like it was before so you have to recreate the old broken way and the new shiny way. Who decided it needed to be re-written?