Corey G. Johnson Fantasy Basketball: RJ --> Mo?

Fantasy Basketball: RJ --> Mo? - corey g. johnson

Hello, I wonder if I should trade RJ for a GP when Mo Williams, a backup incase of Deron Williams is hurt to have (as is currently the case). It would be a reasonable solution? Here's my list:

PG Deron Williams (UTA - PG) INJ
SG Joe Johnson (Atl - PG, SG)
G Kevin Durant (Oklahoma - SG, SF)
SF LeBron James (Cle - SF)
PF Carlos Boozer (UTA - PF, C)
F Lamar Odom (LAL - SF, PF)
C Dwight Howard (ORL - C)
C Al Horford (Atl - PF, C)
Useful Greg Oden (Por - C)
Util Corey Maggette (GS - SG, SF)
BN Richard Jefferson (Mil - SF)
BN Ronnie Brewer (UTA - SG, SF)
BN JR Smith (Den - SG)