5. Colton Welker (328 points, 13 ballots)

Colton Welker has largely followed the Nolan Arenado prospect development path to date. Both players were high school shortstops that were converted immediately to third base after getting drafted (Arenado in the 2nd round, Welker in the 4th). Both players moved up the minor league ladder a year at a time (well, until 2020), posting excellent lines in Asheville and more pedestrian numbers elsewhere (but still above average as one of the youngest in each league they played in). Read more by clicking here: Purple Row