How to transition: leaving an EdD before completing to pursue a masters in another area
Finish it off.  Do it as fast and easy as possible.  The doctorate is more impressive than a second masters.  You are half way through. 

Note I am extremely skeptical of academia and grad degrees and often tell people to do an MBA instead or just work.  But once you are in it, finish, finish, finish.

And remember, it is pass fail.  Just get through it with the minimum.  ASAP.