With games 3 to 4 being back to back, I don't think they will throw Evans in right away, as it could be a risky situation for him to aggrevate whatever he has.
By the time game 4 rolls around, who knows what we will be talking about. It could be Staal coming out, depending on how game 3 goes, and even depending on who needs some therapy time.
If you are going to talk about your "depth", it's time to play that card in that back to back scenario, and see if that can actually work to their advantage.