Oh, you're dead right about that. I imagine the producers thought Bishop would bring a breath of fresh air to the series, but they haven't given her much to do so far. She hasn't had a chance to make her mark upon the team; she's more a tagalong than anything else.
If they really wanted to stir things up, they could have made the new token woman team member someone who's not at all impressed by Gibbs's style of leadership. She's impervious to The Stare. She refuses to guess at what he wants her to do. She's never intimidated into babbling incoherence. When she's yelled at, she yells back. And she never brings Gibbs his coffee. Now, THAT is something I'd like to see.