Ailene Voisin gets the story out of media day:

I've mentioned a few times that Spencer Hawes might be most similar to Shareef, in terms of output. Hawes might drift away a few more feet from the hoop, but at the core, both are skilled, not overly athletic big studs. We'll see, but I don't see how this can hurt (toss in Jason Thompson and Donté Greene, too).