I think they need to find a way to use them situationally and not in a pre-determined rotation. It would also be nice if while in the process of asking Maroney to attack the hole like Dillon they alternately made some concerted effort to develop some blocking schemes better suited to exploit his explosive speed.
I really think at the end of the day the problem with utilizing both of these players to advantage is more deeply rooted in maddeningly inconsistent Oline performances. A healthy Dillon is better suited to run in those conditions, but if he is forced to carry too much of the load as a result he won't be a viable option come December and January.