I'm practically apoplectic at where this set of four mocks has Skal. Skal has worse college stats than Chriss, Davis, and Ellenson. He doesn't rebound. He doesn't shoot from long-range. He blocks shots sometimes, but fouls at an alarming rate -- one every five minutes. He was a complete disappointment in his one season in college. He was also very old for a freshman. He turned 20 in March. That's the age of a sophomore, not a freshman. He's 9 months older than Davis, 10 months older than Elenson, and 16 months older than Chriss.
He doesn't have good reach for a big. He's pretty lightweight. His athleticism isn't special (31 inch vertical as a 19 year-old). He's someone who looked good playing kids 2 years younger than him on the AAU circuit a couple of years ago, but has very limited basketball skills. That he is between 4-9 in all of these mocks is ludicrous. (Heck, that he's #11 in draft express' mock also makes no sense). He doesn't resemble an NBA-ready player, and at age 20, it's very difficult to see the upside.
I will be very annoyed if the Celtics pick him in the first round, and I will openly mock any team that picks him in the top 20. Players who turn 21 during their rookie season should not be expected to spend time in the D-league if they're lottery picks.
He's tall, but not exceptionally so for an NBA big. That's it.
/rant