I have often thought that the biggest problem facing the Lions' offensive line is not necessarily the talent, biut the constant state of flux the unit has been in. Besides the shifting schemes, coordinators, and coaches, the Lions have--both by choice and to replace injury--played an enormous number of different players around left tackle Jeff Backus and center Dominic Raiola. While the Lions have indeed brought in a lot of new competition for the "two-deeps", the extensions of Raiola and guard Stephen Peterman mean they're returning four of five starters. Only time will tell if this approach was the right one, but O-line is certainly a place on the roster where continuity is it's own virtue.
Discuss it here, in The Den!