It's been done. If your doing a remake, I wouldn't consider it a good or original idea to recast the actor in the exact same role. How would Scorsese's Cape Fear have been with peck and Mitchum doing the same roles? Why not Eli? Because if I really wanted to remake the film, I would find other people to re make it. Not do it over again. It would be interesting to see another actor interpret the role of Calvera. Sancho has that disregard for just about everything that is great in a bandit.
And I ask you, why would you recast Wallach? Don't think it shows good casting judgement. Completely lacks any originality or ideas.
Oh, sorry Stanton. I didn't see the smiley. Took it too seriously. :-[