Actually that sounds like a good idea, 2 pits one in each venue with there fields right there.
I think if they do have the pits in one place and the playing fields in the other, it wouldnt be that far to walk.
Here is a map. Walking from the two may be even shorter than walking from the far end of the pits, to Eienstien at Epcot. The pits then were long by themselves. You could fit 4 Boeng 727's nose to nose in that space thats the pits alone.
Anyways hopefully it wont be bad.
BTW i dont think that they would rotate fields in either configuration. I thought the reason to rotate is to get every team a turn on the big field. If all the fields are the same, there would be no reason to.