I don't know what is going on these days. While I personally find NCIS world has got kinda dull. For me, NCIS started going down hill slowly, right back when Abbey left. NCIS L.A. was the next best for me.

However, it is still one of the best things on TV these days. I think it is unfair to compare Hawaii with NCIS viewing ratings. It was the highest rating in it's time slot. Why cancel that, because of yet another addition to the NCIS universe, before they know what ratings NCIS Origins will get? It may be a complete miss.
It would of made more sense to give Hawaii another season, to give them time to see what ratings Origins get.

They just keep making new ones, to watch established ones burn to the ground.

Is it not obvious that there isn't enough demand for the supply of another new one?
Sydney pops up, L.A drops out. Origins pops up, Hawaii drops out to make room. I really don't think that is a very good way to treat your actors and everyone else that is now without work.

I noticed the status changed to cancelled. Now it has been changed back to returning? Do you know something we don't?

I have been reminiscing and digging up TV shows from the 70s and 80s. Straight away, I noticed that the series, used to have a lot more episodes per series. I think that is one reason why so many series are being cancelled. you don't have time to get in to them, before they finish again for another year.
back then, there was 9 months on TV and 3 months off. So you would have more time to get in to the show, less time to forget everything, so less time needed to get back in to them.

The other totally unfair and stupid thing they keep doing is stopping it for 2 weeks here and a week there. People lose track and lose the show.

You want the audience to invest in the show, 1st, you have to invest in the show. Show some loyalty and respect to the people who work for you, some consistency in the days it's on.

People have kept saying that the characters haven't got much in the cohesion. I am not surprised really. They are never sure if they will be the next to face the axe.
how can the characters and actors bond, under these disloyal, disrespectful and ungrateful human calculators? I know they aren't a charity and I am certainly not saying they should keep paying good money for rubbish. But this was top in it's time slot. what more do the calculators want from a show?