Re: Infield defense
Exactly, I think Lopez could be a very solid 2B. He's athletic, he just don't get a great jump and doesn't have the raw burst speed to make up for it. A move to 2B would minimize that issue and also should help with the accuracy issues.
I also agree with your take on EE. He has GG range, but again it's his throwing. Furthermore, we do NOT have a better option there, unlike Phillips and SS. EE is 3 years younger than Felipe. If he's still throwing balls in to the 3rd row on a regular basis in 2008, I'd have a similar suggestion.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.