Wasting him how? He's a great 2B/3 D I think they'd be an excellent shutdown pair (both have good skating, Tanev brings the brains, Sbisa, the physicality) and open the Edler pair up for more offensive/secondary shutdown minutes. Also keeps the young guys on the third pair with less pressure with occasional top 4 time with injuries.
On a short, say 4 year term, why not Goligoski?
And no, if we don't sign any not-Hamhuis, I'd say it's:
Edler, Tanev
Hamhuis, Sbisa
Hutton, Tryamkin
Pedan, Larsen
That's ok...but it's not particularly great (just like it wasn't last year) and does little to move the D core forward (or interest fans).
Subban, Stetcher and Brisebois (and Biega IMO) will be in Utica barring one of them absolutely annihilating the competition.