Casali was a mid-round pick out of Vanderbilt this summer. He is an above-average defender right now and could develop into a premium defender in time. He has experience catching elite arms at Vanderbilt which should ease his transition to pro ball.
McCann has an incredible catchers frame to go along with a powerful arm and good catch-and-throw skills that could make him an elite defender as he matures. He demonstrates good leadership qualities as well. Holaday topped this list a year ago and many thought he would be an elite defensive catcher right away. He has struggled adjusting to pro ball and still has trouble blocking balls to his side.
Brantly and Roof are both average to slightly above-average defenders though both need to improve their receiving ability and consistency behind the dish.
Kunkel has topped this list in the past and was still in consideration for the Top 5 this year. Scouts that saw him this year said they noticed decreased mobility behind the plate and his pop times weren't quite as good as prior years.
Purroy is a very good defender for his age with a strong arm and he likes to throw it around the diamond. He remains pretty rough blocking pitches but could develop into an above-average defender. Tenia is a very good athlete behind the plate and he also owns a strong arm.
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