The Raiders are in disarray and have been for a while. Frankly because there is no organization whatsoever. Al Davis goes through head coaches like Liz Taylor goes through husbands.
However he has made the right choice with Tom Cable. What the Raiders need is continuity with one system and that system has been implanted for two years. With the hiring of Tom Cable that insures the system will be kept in place for at least three years.
If the Raiders are to succeed Tom Cable must be their coach for at least four years.
You give the head coach two years to get in touch with players and for him to instrument that system and for his players to learn it. Then the second half of the four year plan is where the Coach is expected to lead that team to the playoffs.
If the Coach fails to do so then he deserves to be fired.
For the case of Al Davis and the Raiders they give a coach only one year or two years to teach the system and they lose games but they make progress. They then fire the coach and then have to start from scratch all over again.
If the Raiders are to return to there dominance it will be because they have continuity.
They didn't need T.O. and they don't need Chad Johnson they have talented players.
They just need a Coach that will be in Oakland for more than two years.