This is what I was getting at. Bourn makes the plays look a bit easier in CF, but Bourgeois seems to get to most of what Bourn would. How much of a dropoff do you think Bourgeois defense is as compared to Bourns.
I don't have anything to quantify it with, especially since there just isn't that much common history without spending more time than I have on it, but just to throw a number out there - 10%? I doubt his arm is as good as Bourn's, and he's clearly a little slower even though he covers a lot of ground. For instance, I think Bourn gets to that ball by the wall easily, better positioning notwithstanding. He's just a faster guy.
Add to that the fact that he doesn't hit as well and probably won't get the time to work on it, and you have a pretty valuable fourth outfielder. I'd love to have Andrew McCutchen though. He's so good they got rid of Nyjer Morgan, and Nyjer was a darn good player if you can overlook the mental struggles.
