22. Jimmy Butler (Drafted 30th Overall In 2011)
While he was not an amazing player right off, Butler became great by 2015. This led to Jimmy Butler winning the NBA Most Improved Player Award In 2015. Since this timeframe, he has put up 20 points a game or more each year on average. He’s also an unsung defensive nightmare. This allowed him to land on the NBA All-Defensive Team 4 times thus far.
Due to being an all-around player, he landed on the All-NBA Third Team twice and he’s been a 4-time NBA All-Star thus far in his career. It’s clear that Butler is one of the best NBA Draft steals ever, but it’s undetermined how much better he will get. That is scary for opposing teams for sure.