We have a lot of prospects who can fight for a spot on the left.
I think short-term, Reunanen has the best shot at making it, but long-term Jones, Miller and Robertson can overtake him and even if we just have one of those 3 turning into a legit top-4 defenseman we are in good shape.
I really like Zac Jones and how he has developed. This upcoming season for Miller will be quite telling. The jump to pro hockey and how he handles that will be fun to observe
I haven't followed Tarmo's progress, but Jones is absolutely legit from what I heard. I didn't see a lot of video other than the international games, but the more decisive he gets as a skater with and without the puck the better he can be. Kid has some of best footwork you'll see when walking the line. He should be looking at clips from Quinn Hughes and Girard. Look at how both guys use spacing. Girard is imo the best long bomb passer out of the d-zone, that's a skill he should be adding. Same passing off the rush.
Miller should be looking to push for a spot with the big club, there's enough insulation if he needs time in the minors, but I think if they are going into camp trying to slot him in as that 3rd wave defender he will end up being exposed a bit if he's not ready, but if he is in that second layer on the left side, he can be more aggressive and play to his strengths, especially in the neutral zone. With the puck on his stick, he needs to lock it it mentally to either make the first crisp pass to the open man or just skate it up, use his body to protect the puck, and create spacing for the subsequent play.
Shut em down hard and fast. Move it up or skate it out. Get it on net or get it to the open man. -> Stack up some shopping money.
That's all he's got to do. If he's doubting himself and can't get out of a funk or needs more schooling, then he's in the minors. There's nothing wrong with that.