Dolphins looking thin on offense

It's only March, but the Miami Dolphins have a long way to go to fielding a respectable offense.

Miami was ranked 22nd in total yards last season and was expected to make upgrades at quarterback, receiver and the offensive. Instead, all Miami has done so far is trade Pro Bowl receiver Brandon Marshall to the Chicago Bears and sign 34-year-old quarterback David Garrard to compete with Matt Moore.

Here is a look at Miami’s current offensive depth chart:

It's not a group to get excited about. It has to be especially tough for Dolphins rookie head coach Joe Philbin, who had a very talented cast to work with as offensive coordinator of the Green Bay Packers.

Bush is really the only playmaker who poses a threat to the defense. There are not many good receivers left in free agency, which means Miami probably will look to the draft to address this need. But the Dolphins can still help the right side of their offensive line in free agency.