Ask Matt: 海军罪案调查处 without Gibbs? 

I agree , without Gibbs no NCIS

I think that I'd still watch NCIS if Gibbs left b/c the curiousity in me wouldn't allow myself to just let it go & not see how anything else played out. Plus I'd want to see how the team would handle something like that if it did happen... BUT I do feel that if Gibbs were to leave the show that it would very quickly go downhill.