But you were comparing DeAndre Jordan and Ryan Anderson weren't you? Jordan only played one year of college. Also Jordan was ranked 8th in last years high school class by Rivals.com while Anderson was ranked 98 the year before. Obviously a low profile guy is going to have to work a lot harder to get the same attention as a high profile guy. Then on top of that, 7 footers are always highly coveted prospects, even unskilled ones, because, as they say, you can't teach size. And to a certain extent that expression rings true. DeAndre Jordan didn't do a lot in his one year at Texas A&M, that's why his stock is slipping. But on size and potential alone he's going to be a top 20 pick regardless unless he totally bombs his workouts or gets arrested stealing a car or something. He has underachieved, but really only for half a season if you look at the stats and Texas A&M doesn't exactly have a sterling record for developing young prospects. This is probably a guy who a few years ago would have gone straight to the draft and sat on someone's bench for four years like Jermaine O'Neal. There's a good enough chance that he can turn it around to risk the pick on him.
I understand your argument and I agree with you in spirit. A lot of supposedly undersized guys have been drafted late in the first or in the second round the last few years and then been awesome in the NBA. Ryan Gomes, Craig Smith, Carl Landry to bring up some recent examples. It's just in this specific case, I agree with the consensus. I'd rather take a chance on DeAndre Jordan living up to his potential with my lottery pick than Ryan Anderson giving me a consistent 15 and 8 every night. Because everyone wants to get that franchise changing talent and the lottery is generally how you do it. You can pick up a Ryan Anderson in free agency down the line once you've already got your franchise player.