Is he though? Tanev was a "poor man's Tanev" at the same age too.
We have plenty of depth. What we lack is top 4 caliber D and any succession plan for all these guys expiring over the next two years (Hamonic next year, Myers and Schenn the year after).
The D needs a MASSIVE overhaul with youth and more speed.
To overhaul, you need to move some of those old, ill fitting pieces out.