-Ostertag was a 28th pick, and had an 11 year career. Definitely overpaid, but not a bad career for a 28th pick.
-Koufos was a 23rd pick, and is still playing 6 years later. Not bad, but the 3 picks after Koufos were Serge Ibaka, George Hill, and Nicolas Batum. So the Jazz made a mistake there.
-Fesenko was the 38th pick. Nothing wrong with drafting a big body there and hoping he develops.
-Hayward was the 9th pick. Are you really arguing that the Jazz should've drafted Paul George instead of Gordon Hayward? Just kidding. I didn't like this pick, and I think it's a prime example of how the Jazz screw up when drafting. The other three, not so much. But this pick was ridiculous. Hayward will probably have a decent NBA career, but the Jazz would be obviously be better off with Paul George.
But then again, look at all the other whiffs drafted before Hayward. Hayward is putting up better numbers than half of them. But yeah, Hayward as a top 10 pick was reach.
http://en.wikipedia.org/wiki/2010_NBA_draft