I think it could come from a couple of spots.
The one spot I'm considering strongly is Kohlert or Etienne at the second WR spot, but I don't think that's as easy as it sounds because we'd still have to have an extra import REC on the roster simply because we don't have enough backup non-import receivers. We'll probably keep Taylor Renaud around, but it's not going to be on the 42 and having ONE backup for THREE starters obviously isn't ideal. It'd be easier if DiCroce was healthy or Aprile was here.
The other spot is right tackle, but that's a ways away from happening and I think Douglas or Simmons will probably lay claim to that spot by the end of camp.
Muambas, Poblah, Watson and three OL is still a pretty good group of Canucks. I guess if we do go with seven Canadian starters, we'll likely DI a RB, a DE and a DB. Realistically, there's no need for a DI linebacker because Stephan and Labbe are capable enough and if our nickel back gets hurt, you can just stick the 6th DB there because if they're going to DI, they're obviously going to be flexible.
That's why I see it being difficult for a guy like Markett to get on the 42 man roster ... he may be a very good player, but I don't envision him as one of those flexible DB types who can play any spot on the field like a Hefney or a Sears.