When new episodes of Duck Dynasty air in August on A&E, there’ll be a new member of the Robertson clan on the show. Alan Robertson, the only Robertson brother not featured on the hit reality show about a successful family hunting business, will be joining the cast. The notably beardless brother is leaving his job as the full-time pastor of White’s Ferry Road Church of Christ to be on the show and serve as the family’s public relations manager. Robertson told The New York Post that he sees the move as a way to reach more people. “What I do for our church—you see, it’s a pretty good-sized church—impacts a lot of people, but because of my association with the show, I’ll get to minister to a lot more people. Any person that’s an evangelist, that’s what you want to do, so I had to give this up for something possibly bigger” …