My thoughts on this:
If the coaching staff and the players think Rob Blake would be the best captain, he probably is.
Also explanation on why it's okay if Blakey only captains (captain is a verb right?) the team for a year:
Pretend the Sharks are Pirates (not the baseball team, that would be horrid) and need to fight people. They then pick Rob Blake as leader (aka captain) because he is the most experienced. He’s a good leader because he’s been there before and knows what to do. The next year comes and Rob Blake sadly dies in battle. The Sharks will pick a new Captain and he will learn how to lead based on Blake’s example.