My criteria for best head-coaching jobs might be a little different than others. Like Bill Parcells, I am not super worried if the talent is a bit bare on the roster. Quarterback obviously is a major consideration. But you can build a good pool of players quicker than you think, assuming the salary cap is not in disastrous shape. These are the criteria that the Josh McDaniels and Pat Shurmurs of the NFL, candidates with multiple head-coaching interviews, will be considering carefully.
The biggest attractiveness factors for me are the franchise’s owner and how patient and hands-off they are; a team’s willingness to spend money, and not just on players; the franchise tradition and fan support; how progressive the franchise is and how solid the foundation is, even in non-football respects; and — this might be as important as any of them — a personnel department and general manager who share a similar team-building vision as the head coach (which obviously varies by candidate).
With that said, here are the most attractive jobs in my view, in reverse order: