Randy Moss is having a private workout with the 49ers on Monday and will have his passes thrown to him by Jim Harbaugh. "I talked to Jim tonight,'' club president Jed York told me late Sunday night. "He's excited, and a little nervous. He's a competitive guy. He doesn't want to look bad." Alex Smith and Colin Kaepernick can't participate because the NFL doesn't want a team's quarterback or a free agent quarterback to throw in a private workout before the beginning of the league year.