Does anyone remember Tyler Kolek? He was the 1-2 selection of the Marlins back in 2014, right out of high school. He's 23 now, apparently literally only throws fastballs, and has like 30 command at best. He's only gotten as far as A, with a shitload of injuries sprinkled in.
His numbers this year between short season A and A, as a reliever mind you:
13.2 IP
20 K
27 BB
1 HBP
9 WP (that's wild pitches)
14 ER
His K-BB% in A is -17.3%
What a horrendous pick that was for the Marlins.