Jets have three very good D prospects in their system, not blue chipper D or big household names so I'm not surprised you didn't realize that. More then one can play both sides, albeit all three are left handed. No one is expecting all three to make it to NHL top 4, but even a pessimist would have to say at least one will. Bottom pairing D we have lots no need for that. Jets have two top 4 now on the roster. Now that buff is gone Jets ideally need two top 4 D via trade/FA/internal development.
1) Will the Jets sign a FA? Maybe
2) Will one of the three internal prospects make the roster next year? Good chance yes
3) Will the Jets trade for one top 4 D? Maybe
Looking at option 3 above, b/c that's what we're discussing in this thread we need to look at what the Jets have already to determine what they need if they went via trade route. Josh & Pionk are easily good top 4 D, Josh is a two way LHD, Pionk is a offensive RHD that isn't bad but isn't great in the D zone. Ristolainen is a offensive D who excels more in the offensive zone and on the PP and is weak/isn't strong in the defensive zone. Jets biggest need is a defensive D on the right side, which is exactly what Ristolainen isn't. So trading to get Ristolainen is purely a waste of resources and a bad idea. Ristolainen needs to go to a team who can ideally play him in roles where he can excel which is more with O zone starts and 1PP......he won't get that on the Jets we already have Pionk for that role.