First, I would not try to minimize the challenges we face now. Rosenberger paints a pretty alarming picture on many fronts. Most of you who are out in the field could probably back up one or more of his assertions with your own anecdotes. There are things that need to be fixed. But let's be realistic - it has always been so.
Every generation has their own set of challenges.
One of the benefits of historical study is to put all of this in perspective and not create the feeling that this particular set of circumstances heralds the end of the Army as we know it. Let me explain. I was commissioned in an Army that was reeling from Vietnam. I was a Cadet at West Point when the Superintendent was relieved and demoted for My Lai. That platoon was filled with returnees from Vietnam with only 2-3 months of service, so the squadron could deploy to Germany for 29 days.