There’s been no shortage of scapegoats for the Colts’ struggles in 2010 – injuries, a Super Bowl hangover, the offensive line, the running game, the defense, the offensive line (did I already say that), even … gasp … Peyton Manning.

Behind one of the league's worst offensive lines, Peyton Manning has been taking a beating this season.

Yet, curiously, team president Bill Polian seems to be avoiding blame. The offense line has gone from bad to worse and Polian’s decision making is the primary reason.

When it comes to drafting offensive linemen, Polian’s recent choices would make Tiger Woods blush.

Since the 2005 draft Polian has selected six offensive linemen in the fifth round or higher. Of those, three remain in the NFL. Two are on the Colts roster and neither of them start – rookie Jacques McClendon and third-year man Mike Pollak.

In fact, Pollak – a second-round pick in 2008 – has been replaced at right guard by Jeff Linkenbach, a rookie playing out of position.

Meanwhile, two right guards who previously played for the Colts are key pieces for good offensive lines – Ryan Lilja in Kansas City and Jake Scott in Tennessee. Polian cut Lilja this offseason and allowed Scott to walk in free agency prior to the 2008 season.

Along with poor drafting and letting the wrong guys go, Polian’s free agent signings on the offensive line this offseason were a disaster. Tackle Adam Terry and guard Andy Alleman were brought in to add bulk to the undersized unit – both were released before the season started.

In some areas, help in on the way for the Colts. The running game has been missing Joseph Addai and Mike Hart. The receiving corps awaits the return of Austin Collie. The defense has been playing without Gary Brackett, Clint Session, and Bob Sanders among others.

But with the Colts’ offensive line, what you see is what you get. There is no help in sight.

The unit is terrible at run blocking, but that’s come to be expected over the years. More disturbing has been its inability to pass block, which is typically a strength.

The struggles up front, coupled with some bad decision making from Manning, have resulted in the Colts’ dropping three of their last four contests. In addition, their streak of seven-consecutive 12-plus win seasons has been snapped.

If the Colts can’t find some answers on the offensive line quickly, their eight-season playoff streak will be in jeopardy as well.