I like making fun of Woodbury as much as anybody on here -- I do not think Iowa has ever presented us a funnier lolcow than Mr. T-Rex Arms himself on the court.
http://barttorvik.com/playerstat.php?year=2016&p=Adam Woodbury&t=Iowa
However, he did improve on the court over time. Notice his PRPG! goes from 0.6 as a freshman to 2.3 as a senior (compared to Jacobson last year, who was a surprise 3.6 for his junior year). It looks like that mostly comes through a higher offensive rating, which looks like that comes through a combination of a higher percentage from the field and a higher percentage from the line gradually over time. He was terrible to start and became, well, okay.
He was also a big body and good rebounder in the middle. He went from awful on offense to mediocre over his career, turning him from a scrub to a marginal starter.