The media keeps specifically asking Babcock about Sandin. No one seems to be asking about Liljegren really which is a big part of why I don't think he's getting talked about. If Babcock has said anything really about Liljegren not being up to snuff with the other D in camp (as stated by another poster here) then I certainly haven't heard that.
People wanna compare Sandin/Lil, like if one is doing well the other must be failing or struggling, but that just isn't the case imo. They don't seem to be being asked to do the same things. Sandin is getting a lot of offensive opportunity, powerplay, probably offensive zone starts (I'm guessing on this one), and Liljegren being deployed more defensively and with largely worse partners.
I really don't see the need to pit these guys against each other. If one or the other makes the team is probably gonna be about their individual strengths and how needed they are in the defensive group, not really which is just outright better.