It will last as long as they are able to figure out a way to get Autumn Reeser in her underwear every week (the tech guru).
Wow - that girl is attractive.
I think there was some pretty serious overacting, but I don't watch network dramas so that may just be par for the course. Like most, I was intrigued by the Clancy-esq element of the show and like most I just don't see how they get more than a season or 2 out of it, max.
They'll need to develop the hell out of some of the characters that aren't on that boat. You'll need it to be some combination of The West Wing, Lost and Red October. If they're able to swing it, the subject matter is interesting enough to keep it going for a bit.
But that's a pretty high bar.
It's my own fault for expecting the Titanic to beat the iceberg this year.