There’s a new assistant superintendent in town.Dan Castillo was formally introduced to the school board during its regular meeting Thursday.Castillo began his new job duties July 1. He replaces Dr. Gregory Nelson, who left last month to become the superintendent for the Lorenzo school district.“I’m here just because I have a passion for kids and I have a great mentor as far as (Lamesa school district Superintendent David) Ritchey goes professionally,” Castillo said.“He’s a big reason why I’m here. He’s very different than a lot of superintendents that I know.” Ritchey and Castillo met about a year ago.“I really like ...