Cameron Marshall

Can anybody who has followed training camp closely tell me what’s up with Marshall? Just looking at some of his highlights from 2015 as a Bomber and seeing that he’s on the active roster, I’d like to know why he didn’t get any playing time against Ottawa or Toronto.

I know Cameron has not been given many reps in practice as I think they wanted to see what they had in the national rb’s.
I think they have kept him around in case they abandon the national rb plan.
He may have been injured in the beginning of camp but I think he is healthy now in reserve.