the yahoo rule is pretty dumb IMO.
So if for some reason, you had shaun alexander, jamal lewis and brian westbrook with cadillac on the bench (hypothetical obviously), you would have to leave other valuable rb's on the wire, because you obviously wouldn't start that player?
You are allowed to pick up talent as you see fit. when you get into churning and dumps etc., then I think you have a problem.
The opening scene of the movie "Saving Private Ryan" is loosely based on games of dodgeball Brian Dawkins played in second grade.