From a scheduler's mouth, the client is so large and each location is getting shopped several times within the same month, the original MSC could not handle the amount of work so the client has shops being handled by a second MSC. It is my guess that the client thinks by using two different MSCs that there are getting a whole new pool of shoppers. What they don't understand is that most shoppers work for both companies.
I think the 30-mile radius rule, also new for 2015 is stupid. Route shoppers can no longer take locations outside that 30 miles. I am now taking other bank shops that pay a lot more money with a bit more writing but worth it to me.