If Miller is ready, I am less concerned about the 3rd pair LD. I would hope between Smith, Johnson, and Hajek one can step up. If not and we are in it, yes look to add via trade as mentioned, but if our biggest D concern is 3rd pair LD, we are in a good spot.
As for Barron, I agree he should eventually take a place on the 4th line with Lemieux and Howden. I really like the 4th line options we have this year. First time in a while we can say that, and say our 4th line can take a regular shift, and say our top 9 is filled with true top 9 guys, not 4th line guys playing in the top 9. I like it.
This is a good team, that may be one year away from truly contending and having the flexibility to complete the team with the needed additions, but either way this year should be a lot of fun. Defending and winning faceoffs will determine our fate.