How do you answer this...

I work for a large hospital that was bought by another large hospital plus several others. The new hospital system basically sucks. There is no support by anyone associated in your job. They are doing things that we manually did 20 years ago. They want things ran their way or no way. Im there 30 years and looking to get out . There is so much more BS. Screwed up paychecks etc. How you answer the interview question - Why are you leaving? Obviously I cant answer what I would really like too.