Pat Dean was the Twins' third-round draft pick in 2010 out of the University of Kentucky, but after posting a 4.30 ERA in 600 innings through his first five pro seasons he appeared to have little chance of reaching the big leagues. Dean changed that last season at Triple-A by throwing 179 innings with a 2.82 ERA, which convinced the Twins to add him to the 40-man roster for the first time at age 26.
Unfortunately a deeper look at Dean's performance shows that not much actually changed. He managed just 4.9 strikeouts per nine innings, which is an absurdly low total and worse than his career mark of 5.