I watched him as a high school senior and while he's big, he was lazy and not very skilled. He had 1 point when we played them in St. George in 2010. I saw him workout a couple weeks ago and he looks bigger, but similar skill level.
I'm considered defensive because I pointed out stats? I said he "probably won't have a single game of 12 points and 6 rebounds this year and maybe ever". Pardon me for trying to level expectations for a walk-on that didn't have D-1 interest coming out of high school to play hoops.
I'm glad you brought up Nate and Luke's stats - they're both more skilled than Corbin, so that's a good baseline to start with.