I've already said this once, and not too long ago either. However one thing I noticed is how many people seem to think that Reggie Bush is expendable due to the possible (not immanent, just possible) emergence of the younger and inexpensive Lamar Miller.
You might have a point there, however like I said, Miller's emergence is possible, not quite immanent. The truth is while Miller is developing fairly well thus far and did lead the Dolphins in yards per attempt, however despite my own haughty expectations for Miller as well as the skills he possesses, remember that there is no guarantee, not even in year two.
The two also compliment each other very well.
While both Bush and Miller do have the same skill set, they are not the same type of running back. Miller is much better at Bush when it comes to running between the tackles, and Bush has actually proven that he can do that fairly well in his time in Miami.
The original goal in 2011 was for the Dolphins to have Daniel Thomas be the power back with Reggie as the speed guy. However, this was chucked out of the plans quickly due mainly to Thomas' inability to stay on the field and healthy. Thomas was hurt for the start of 2011, then after a few games would find himself struggling with a hamstring injury that season while Reggie Bush started to break out for the Dolphins. Thomas would also find himself hurt for a good part of the 2012 season before finally ending it on injured reserve.
While you might look at the Dolphins depth chart and comment on how they're in good shape without either Bush or Thomas with Miller, followed by Marcus Thigpen and Jonas Gray, this would also be a backfield devoid of experience.
Experience that the Dolphins can ill-afford to do without. Bush has been a strong presence in Miami's locker room and a reliable veteran leader in a locker room that was one of the youngest in the NFL.
Why would the Dolphins want to get rid of that when Bush is productive? If anything the problem Bush had in 2012 was the fact that the coaching staff weren't as imaginative as they should've been in using him. Bush is best utilized when given space to run. He can run between the tackles, but he's better on pitches and in the passing game.
That's not the only reason Miami should re-sign Bush, a player that is popular with Dolphins fans and also a player whose desire is to stay in Miami (per ProFootballTalk).
The other reason is the popularity of Bush as well as a reason the Dolphins gave themselves, public relations in an attempt to win an election.
Already the Dolphins are facing an uphill public relations battle due mainly to the fact that Jeff Ireland is still gainfully employed by the team. On top of that, there are refurbishments to Sun Life Stadium that the Dolphins want to complete, and The Miami Herald is reporting that an election will be held in Miami-Dade County to vote on the referendum to complete said renovations.
The Dolphins need to win that vote, and the best way to do that would be to turn public relations on their side. Since there won't be a season between now and when the special election is expected to be held (sometime between mid-April and mid-May according to WFOR CBS4 Miami), the best way for the Dolphins to do that would be with a great free agent class, possibly their best one in a while.
Bush should be one of the veterans coming back. The fans want him, he wants to stay in Miami, and at least in 2013, he will help Miami (a team that is a lot closer to a playoff berth than many think) win ballgames.