With Posey now behind the plate, the infield should be shifting around a little bit. It makes sense to have Pablo Sandoval shift over to first, Juan Uribe to third, and have Edgar Renteria start at shortstop.
Now, it would make sense, but there seem to be some problems with that situation. With Uribe and Renteria both in the starting lineup, the Giants are again starved for middle infield depth.
The odd man out seems to be Travis Ishikawa, who has actually proved invaluable off the bench as a pinch-hitter. But if the Giants need a middle infielder, they have a glut at the corners with Panda, Uribe, and Huff, so Ishi might get the boot.
If Huff moves back to first, and Renteria and Uribe form some sort of platoon, that would relegate most of the rotating to the outfield, which is much easier. Aaron Rowand, Pat Burrell, Andres Torres, and Nate Schierholtz could very well manage in the outfield with Huff as a backup if needed.