...Indeed, it might be a good idea to give command of the bridge to a relatively junior officer while the senior ones are involved in more important things than the operating of a starship that sits idly in orbit anyway.
It's not as if the person sitting on the center seat must absolutely be the highest-ranking one around, or the most experienced, or anything. "Most expedient" would often be the key criterion.
It's just convenient that Kirk has the relatively senior Chekov available for the job, but he could have used any random Lieutenant as well. To have a full Commander there lends credence to the make-believe that Chekov would be the actual skipper of the ship, though; Sybok would probably figure out that they don't give big starships to Lieutenants, and would start to wonder where the real skipper was.
Timo Saloniemi
It's not as if the person sitting on the center seat must absolutely be the highest-ranking one around, or the most experienced, or anything. "Most expedient" would often be the key criterion.
It's just convenient that Kirk has the relatively senior Chekov available for the job, but he could have used any random Lieutenant as well. To have a full Commander there lends credence to the make-believe that Chekov would be the actual skipper of the ship, though; Sybok would probably figure out that they don't give big starships to Lieutenants, and would start to wonder where the real skipper was.
Timo Saloniemi