I remember a few years ago there was big debate on whether or not AK is bell cow. My point was that he absolutely can be a bell cow but just because he can doesn't necessarily mean he should.
Well fast forward to today and the Saints have used him in a tandem with Ingram/Murray with great success while other RBs have been run into the ground. Then last season he had a career high 287 touches and had his worst statistical season. Obviously there were a lot of factors to consider but still. I think it's clear that AK will always be best used in a tandem. Let AK work outside in space and use him in the passing game. Let another back get some of those tough yards between the 20s.