There's a commonly held belief the Miami Dolphins boast one of the NFL's best offensive lines.
But all the clutter between those bookends makes me wonder how the Dolphins can be considered elite. In the three years since Bill Parcells assumed control of football operations and hired offensive-line coach Tony Sparano to run the show, the Dolphins have turned over their interior with alarming frequency.
The Dolphins on Thursday released center Jake Grove. The Dolphins identified him as a critical upgrade last year and signed him to a four-year, $29 million contract.
Now Grove is gone, just like their big free-agent signing from 2008, left guard Justin Smiley. The Dolphins signed Smiley for five years and $25 million. He lasted two seasons.
They'll use their third center over the past three opening days and have constantly changed guards.
No other unit in football depends on chemistry as much as an offensive line, but the Dolphins have been malcontents with their centers and guards.
Let's take a look at O-line personnel the Dolphins have rototilled since Parcells, Sparano and general manager Jeff Ireland came aboard with emphasis on starters.
Hired offensive line coach Mike Maser in January 2008, fired him in January 2009.
Hired offensive line coach Dave DeGuglielmo in January 2009.
Smiley started 12 games in 2008, 12 games in 2009 (released).
Andy Alleman started five games, including postseason, in 2008 (traded).
Nate Garner started four games in 2009 (injured reserve).
Richie Incognito projected 2010 starter.
Samson Satele started 16 games in 2008 (traded).
Al Johnson was 2008 backup (released).
Grove started 10 games in 2009 (released).
Joe Berger started six games in 2009, projected 2010 starter.
Donald Thomas opened 2008 season with job, started 12 games in 2009 (released).
Ikechuku Ndukwe started 15 games in 2008 (traded).
Garner started four games in 2009 (injured reserve).
John Jerry projected 2010 starter.
Guard Shawn Murphy, 2008 fourth-round draft pick deactivated all 22 games (released).
Center/guard Steve McKinney played zero games in 2008 (released).
Guard Evan Mathis played seven games in 2008 (released).
Guard Matt McChesney played one game in 2008 (injured reserve/released).
Guard Andrew Hartline played two games in 2009 (released, practice squad).
Guard Cory Procter signed, released last week and re-signed Thursday.
Tackle/guard Pat McQuistan acquired last week in a trade.