It seemed likely that Dirk Koetter was headed to Boise State as recently as a few hours ago, but those things have a way of changing quickly. As Jason Kirk and Jeanna Thomas wrote, Koetter didn't get the Boise State job, which means he's still in Atlanta.
It's always possible Koetter gets a head coaching gig at another college or in the NFL, but it's not likely. While a highly-regarded offensive mind, Koetter doesn't have the profile of guys like Gary Kubiak and (possibly) Jason Garrett, who are likely to be available when the coaching carousel spins this off-season. The likeliest thing is that he remains in Atlanta as the offensive coordinator.
I know a number of you don't believe Koetter's the right guy to lead this offense, and I'm not going to wage a lengthy campaign to change your minds. I'll just note that the Falcons rank 6th in the NFL in passing yards and 13th in total yardage despite having a bottom five offensive line, and that Koetter piloted a very capable offense just a year ago when the line was a bit better and injuries hadn't piled up.
Does he have his limitations? I'd say he can be awfully stubborn about leaning on a ground game that has achieved little success and that he hasn't schemed as effectively as he could for the limitations the offense is facing, but I still think he's a very solid coordinator. Assuming the Falcons don't just clean house in the off-season, Koetter will have his job in 2014.