KR/PR - Who is Starting for SF?

Hey all, quick question. Return yards counts in our league, both for punt and kickoff returns, and go to the player who gains them; 1 point per 10 yards. So, in our league, the likes of Jacoby Jones, Josh Cribbs, Percy Harvin, and Johnny Knox are all-stars. This was a default setting in the ESPN league that we didn't catch. If he scores a TD, the Def gets credit as well as the player. I'm having a tough time keeping up with the other WR's in the league, so I'm looking for more. With the recent roster changes for SF - Rossum out, Crabtree in - is Spurlock, Battle, or Morgan going to be the primary guy for returns? I've heard all three mentioned at some point. Thanks in advance.

Arnaz Battle