http://www.realfootball365.com/nfl/articles/2007/07/dolphins-offense-questionmarks170707.html There are more questions than answers for Miami's offense at this point. In fact, there is only one player who, barring injury, is guaranteed to be a starter at the position he occupied a season ago, and that's running back Ronnie Brown. A few other starters -- like Chambers and counterpart Marty Booker -- should be returning, but Chambers' legal issues and the possible emergence of first-round rookie Ted Ginn Jr. could leave either of the two veterans out of the starting lineup come September. You've also got a few guys who will likely start again, but at different positions. Former right tackle Vernon Carey is moving to left tackle, former right guard L.J. Shelton is moving to right tackle and ex-center Rex Hadnot could be shifting to right guard. Beyond that, every position along the offensive front will be manned by a new player in '07. There are new No. 1s at quarterback, fullback, center, slot receiver and tight end. However, the most questionable position of all is that of left guard. Currently, rookie Drew Mormino is battling with journeyman Chris Liwienski for starting duties. The Dolphins are also considering free-agent upgrades such as current Jet Pete Kendall or former Cardinal Milford Brown. None of these players is expected to turn left guard into a position of strength in the near future.