No surprise it got cancelled.
Had a good premise, perfect balance, great cast the first season...Got renewed... So what does NBC do? Revamp the Show!!
TV Executives, the day they're hired, are scheduled for lobotomy, (You can't work in the TV industry with a whole brain, silly!!) That's the only explanation as to why these morons take something that's working and kill it. This time by dumbing it down into yet another tired police procedural.. (What's the matter? Didn't think we had enough on TV.)
Two episodes into the second season, I dumped it.
There are countless shows that we destroyed this way. After a good first season, IDIOT TV exec say "we'll make it better," by deleting the theme that got it renewed in the first place.