By Merrill Reese: When the Eagles lost left tackle Jason Peters for the season we knew that was huge.

My confidence in this unit remained because line coach Howard Mudd is the best in football, but when exceptional center Jason Kelce went down and fill in tackle King Dunlop pulled a hamstring the job got even tougher.

Even the best coaches are limited by available talent.  Mudd has never had a greater challenge.

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