Quite a sobering assessment. I've had Matas and Holland both over him for awhile now, and stand true to that.
One thing about Hollinger's tiers you posted a few posts later... when I look at tiers I generally think "I would draft anyone in this tier, regardless of my needs, before I'd draft anyone in the next tier". With that in mind, my Tier I and II right now is below (this may not be my exact order, but close). Keep in mind, this is with a Spurs-centric lens, so guys like Sarr and Clingan get dinged because we don't need them (though I don't particularly like Sarr anyway).
Tier I:
Matas
Holland
Dillinger
Sheppard
Castle
Tier II:
Risacher
Williams
Sarr
Klingan
Knecth
Carter
I think we have a real opportunity here to end up with two guys from Tier I, which is exciting (and frankly, I believe we have an opportunity to end up with the top two on my board, but I suspect Holland will rise).