Nicks is too much for Leshoure but being a 16 team league, his roster is probably pretty similar, talent-wise, so Leshoure is probably a valuable commodity. I would definitely give up Smith or Bowe for him, not Nicks. I wouldn't part with Nicks unless somebody presented a TRich/Ridley/Morris type talent in return. THEN I might think about it considering how deep you are at WR. Good luck and thanks for answering mine!
QB - Mathew Stafford
RB - Doug Martin, Trent Richardson, Steven Jackson, Chris Ivory, Reggie Bush, Lamar Miller
WR - Dez Bryant, Larry Fitzgerald, Randall Cobb, Dwayne Bowe, DeSean Jackson, Alshon Jeffery
TE - Jimmy Graham
K - Phil Dawson
D/ST - Seahawks