Hardcore Texan
Magnet Man
I consider the #1 and #2 RBs to both be starters. They get switched out all game long, rather than being a benched player who would only come on in scenarios of injuries or a coach demoting the 1st string guy.
Semantics.
I disagree. This is how I see it:
Starter = majority of the snaps, especially an every down back like Arian.
#2 = situational player i.e. goal line back, 3rd down back, etc. Or to give the starter an occasional breather or to keep the starter fresh for the 4th qtr. Much fewer snaps than the starter.
I rarely see a 50/50 split on the carries, most of the time you need to give the RB a chance to get in a groove.