Barnes name was brought up by somebody else (I can't remember who) a few months ago when Adams got the Pompey job. They asked why Adams was being given a second chance when Barnes didn't.
What's annoying is that there is a genuine issue here, but certain people want to play the race card to further their own cause. When Adams quit Wycombe, he went straight to Dutch football, even taking a youth caoching job I believe. He then worked as an assistant to a top experienced manager for a few years, and was at a club that needed a manager at the right time.
When Barnes left Celtic he did TV work only, and he was [Poor language removed] at it. it's all very well saying "if somebody offered me a job, I'd have taken it", but you hear the same thing in the dole queue. But like them, Barnes had no interest whatsoever in improving himself and making himself employable again.
THAT'S why Ince didn't make it.
As pointed out above, the 20% comparison is bull. Some managers are internationals who walk straight into big jobs, but most managers have to work their way up, from player to coach to assistant to manager. So the current batch of managers would have started management in the last 10 years would have retired playing about 10-20 years ago, which means they would have started playing 25-35 years ago. So in theory, the demographic of managers should be similar to the players coming through in the late 70s/early 80s, who were overwhelmingly white.
On top of that, the racism that existed through to the early 90s (at least) would have meant that few black players would have been given leadership roles (official roles like captain or unofficial ones), and these types of players wouldn't go on to become managers.
The bigger issue is why more black players aren't getting coaches badges. Look at the list of "top qualified black coaches" on that BBC link. Andy Preece? Leroy Rosenior? Only Keith Curle comes close to being a decent player, and he was average. Football managers are picked on reputation as a player as much as management ability, so it's no real surprise that that bunch can't get a job. I suspect that Les Ferdinand will have less trouble getting a job.