Yeah, Beach is the somewhat tired-seeming dude at the science station who delivers the "dominated by craylon (?) gas . . . incapable of supporting life" report, then is later shown to be third-in-command ("let's give them a little more time"). Come to think of it, Terrell, Chekov, and Kyle all seem a little drained too, so perhaps this was part of the point, as in, how could they miss out on how many planets were in the system? If I'm Beach and my job is scanning things, I'm running a quick check on the system including the number of planets, the condition of the star, etc. - they are evaluating its suitability for a life-generating experiment, after all. But I get what you're saying that the non-speaking navigator probably needed to be doing a little head count of the planets in order to know which one to head for. Maybe he (she?) deferred to Chekov as a pretty famous navigator in his own right. Scotty bringing Preston to the bridge has never bothered me; dude was out of his mind with grief. And sorry for the threadjack, all.