Practically every hot coordinator getting an interview has an impressive resume, or they wouldn't be on teams wish lists.
But there have been many, many "hot" coordinators that haven't panned out as head coaches. Dave Wannstadt and Norv Turner were hot when they were in Dallas. Mike Mularkey and Dom Capers were hot when they were with Pittsburgh, Romeo Crennel was hot when he was in New England, and we could go on and on.
What you want in a head coach is the ability to teach, organize, manage, motivate and gameplan. Many "hot" coordinators are often missing a few of these traits, no matter how good their offenses or defenses were as coordinators.
To that end, I must admit that Cam Cameron's record at Indiana scares me. Yes, I know Indiana wasn't exactly teeming with top talent, but the best head coaches have a tendency to get more out of their roster than the talent would indicate. I'm not sure Cam did that in Indiana, or is capable of doing that here.