I think either Abou-Mechrek or Lazeo could play the left tackle position. Both have played it in the past although Lazeo only as a mid game injury replacement. When he did, to quote Chris Walby, "the line never missed a beat." I would feel more comfortable with them over Chris Best unless he totally dominates in the preseason at that position.
I could see O'Day center, Lazeo right guard, Smith left guard, Makowsky right tackle and Abou-Mechrek left tackle, Frenette and Parenteau backing up with Best being one of the four players on the roster not dressing for the game. There would not be much wrong with that starting group.
If management is thinking of at least one import starter, it will be interesting to see who actually gets the nod. My heart is with Hall but I think Johnson is the best of the crop although Austin is familiar with Feugill. It will probably be the one who has the best lateral movement.
But it will likely be as jman135 says: 4 Canadians and one import, from right to left, Makowsky, Smith, O'Day, Abou-Mechrek and an import.