I agree, Bogo would be a very good 3 d man.
I can't say Risto will be a franchise d man, yet. Promising, but to little nhl time yet to station him as a franchise 1 d man, and it most likely wouldn't transpire until he's a bit older. I think many fans are putting the horse before the cart on Risto.
Gorges, a good filler for the developing years of Risto to try and achieve that franchise label, but then what? Who comes in to partner with him?
D needs to be addressed for certain, and high level talent at the 1/2 position.
On a brighter note, I do see Pysyk and Bogo making a very good 3/4 set up, or, at the very least, Pysyk can most certainly fill a 5/6 position. So there is some good news on the defensive side of things.
Depth is an issue, for now, but once again, can be aggressively addressed via fa and draft scenario's.
If all have noticed, I haven't mentioned Zad's in any of this, because quite frankly, he's a real question mark right now. Where does he fit in? How high can he reach towards his potential ceiling? Much will depend on his development curve over the next couple of years when it comes to how the D plays out.