This. Everything you said is exactly my feeling too. They have a perfect opportunity to bring back the Brass and Grissom bromance of seasons past only now with DB but the writers still don't know what to do with Brass (or any other detective for that matter) and now he's been reduced to maybe, if he's lucky, four minutes of screen time. I would not be sad if Brass hopped on his motorcycle and rode off into the sunset after they wrap up the second part of this episode in S14. Having no Brass would be better than having pointless, shell-of-his-former-snarky-self Brass.