2) Austin Hedges
Austin Hedges was the top prospect in the Padres system before debuting in 2015. Nobody ever knew if he was going to do much offensively, but his glove behind the plate made him super valuable to the Padres. He was expected to be the team's catcher of the future after making it to the big leagues.
Unfortunately, things never clicked for him in a Padres uniform. The team gave him over five years to figure it out offensively, but he hit under .200 in the brown and gold, posting an OPS of .616. The glove was as good as advertised, but his bat was so bad to the point where he simply wasn't a startable player.
The Padres finally cut the cord and moved him in the deal with the Guardians that netted the Padres Mike Clevinger. That trade obviously didn't work out as planned, but Josh Naylor and Cal Quantrill have more to do with that than Hedges who in his nine-year career, still hasn't figured it out offensively.
Since leaving San Diego, Hedges made stops in both Cleveland and Pittsburgh before the Pirates shipped him off to Texas at this year's trade deadline. The Rangers wanted Hedges to be Jonah Heim's backup with Mitch Garver doing most DH'ing, and he did appear in 16 games for the Rangers down the stretch. Hedges had just a .417 OPS in 25 Rangers at-bats, but he is on their postseason roster looking to win a ring.