With two black head coaches in the Super Bowl, it seems an appropriate time to take a look at black coaches in the NFL. While there are still quite a few coaching vacancies around the NFL (1 head coach, 5 offensive coordinators, and 2 defensive coordinators), we can still get a feel for the situation.
Currently, there are more black head coaches (6) than offensive coordinators (1) and defensive coordinators (4) combined. Considering it was only 16 years ago that the NFL had only one black head coach (Art Shell), this is significant progress.
Are six black head coaches (out of 32 teams) enough? While that is comparable to the black population in society, it is not comparable to the percentage of black players in the NFL. However, that comparison assumes players become coaches, which is often not true. Players generally make more money than coaches. After they retire, they normally pursue higher paying careers, such as broadcasting. When you see former players in the coaching ranks, it is usually (but not always) players of lesser quality, who made less money. For them, coaching is not quite as significant a drop in salary.
Keep in mind that players nowadays NEVER go from playing to head coaching (Norm van Brocklin was the last player I can recall who did this back in 1961). This means any coach has to "pay his dues" in order to become a head coach. Why would any player who has made seven or eight figures want to make five or six figures in order to become a coach? It takes a true love of the game for a player to do this. Unfortunately, for every Mike Singletary (former all-pro linebacker with the Bears, currently defensive coordinator with the 49ers) and Herman Edwards (former all-pro cornerback with the Eagles, currently head coach with the Chiefs), there are ten Shannon Sharpes or Tom Jacksons who go into fields such as broadcasting to make more money.
But that leads to the question of why aren't there more "lesser quality" black players who take up coaching after they retire? Since there tend to be more black players in general in football, it might be a good idea to look at the path they take to the NFL.
They start in high school. Assuming they have success there, then they move up to the college ranks. Assuming they have success there, they move up to the NFL. This is where the "lesser quality" players bust, or have mediocre careers. Considering they have success and glory and fame on two levels, then are another face in the crowd at the NFL level, is it any wonder they get disillusioned with the sport by the time they retire?
Another common thing you see in NFL coaches are guys who played football in college, but never made it on the pro level. Hue Jackson, the only black offensive coordinator in the NFL, was a college quarterback who never played pro football. He went into coaching on the college level immediately after college. Ron Turner, the offensive coordinator of the Bears, was a wide receiver in college who never played in the pros. Mike Martz of the Lions was a tight end in college who became a high school football coach after he graduated. Mike Tomlin, the new black head coach of the Steelers, was a wide receiver in college who never played pro football. Lovie Smith? No pro football experience as a player. One other thing to note is these guys played college football at small schools, not the USC, Ohio State, Florida-type "programs".
For black NFL players, coaching is not the best post-career option for them. They can use their name recognition to make money in other fields.
On the other hand, why aren't more black coaches coming up from the college ranks? That is a question for a college football expert.
OTHER COACHING QUESTIONS
Robert George asked, "Another question that might be asked is why (at least as it seems to me) do there seem to be more black defensive coordinators than offensive ones." There are, by a 4-1 margin (although there are five offensive coordinator openings now, so that might change).
The reason? This is just speculation on my part, but I suspect it is because defensive players in general are not the "glory hounds" that offensive players are (Deion Sanders being a VERY notable exception). Also, in general, defensive players get paid less than offensive players. Therefore, black players playing defense would be more agreeable to pursuing a coaching career after they retire.
Bill Barker suggested, "Just a guess: Fewer black quarterbacks." Actually, quarterbacks are NOT more represented among the coaching ranks than any other offensive position. (If anything, I have seen more former wide receivers in the offensive coaching ranks, but I would not say they are the majority.) The more successful quarterbacks avoid coaching like the plague, regardless of the color of their skin.
While fewer black quarterbacks and fewer black offensive coordinators might be symptoms of the same problem, one does not necessarily lead to the other.