What do you predict for the backend-blueline?
I dunno.
At season's end, Karlsson, Heed, and Ryan are all FA (Ryan RFA, the other two UFA). Heed seems likely to leave just because he's never really gotten a good shake. Ryan would be a safe bet to stay, but he also appears to have fallen out of the coach's favor. But probably at worst he'd be the #7. Karlsson is the wild card. If he leaves the Sharks need to fill at least 1 spot on the back end, possibly 2. Meanwhile in the AHL and amateur ranks, you have every signed d-man short of Merkley, Roy, and Middleton as RFAs. Wood, Donaghey, DeSimone, Brodzinski, Fitzgerald.
Brodzinski appears to be all but done. Dognahey is having a good year in the ECHL and maybe he at least moves up to be Cuda depth. DeSimone and Wood would probably be easy retention candidates too. The swing is Fitzgerald, who has never really impressed offensively, but might be acceptable as a depth option. Merkley remains ineligible for the AHL next season as he'll only be in his age-19 season.
For unsigned prospects, the only players the team has are Ferraro and Cukste. The latter is pretty much a total non-factor who I expect is non-tendered when his rights come up in a year or two. Ferraro has promise, but is having a down year. He probably makes sense to keep in college and watch for a rebound. So neither is likely a consideration for AHL duty. Maybe they surprise me and sign Ferraro, figuring he doesn't have anything else to learn in college, but I feel like you don't do that with a guy who's clearly taken a step back this season. Sign them as they come off a high point in their development cycle or when you have no other choice.
So at the end of all this, if we assume a Sharks D unit (barring trades) of Karlsson, Burns, Vlasic, Braun, Dillon, Simek, Ryan, the Cuda would shake out to have the following:
Middleton, DeSimone, Wood, Roy, Fitzgerald, Donaghey.
It's not great. Not deep like hte forward set would be, but in that order it seems like the makings of a reasonable depth chart from #1 to #6, provided Roy remains healthy. I wouldn't expect much in the way of NHL future out of the group though. The first two seem like #4s at the highest end, Wood might be a bottom-pairing specialist, and the jury is likely out on Roy unless he can put together a couple of uninterrupted seasons with no injury problems.
This is far less of a nuanced analysis than I had on the forwards though. I wouldn't take my word for it.