It remains to be seen if Marcus Lattimore is Frank Gore’s heir apparent. In 2013, though, it appears the 49ers’ fourth-round pick will be the Pro Bowl running back’s shadow. After meeting the eight-year veteran for the first time Monday, Lattimore hatched a plan for acing NFL 101 during his rookie season: He’ll fix his gaze on Gore, an ideal mentor who is humble, hard-working and possesses an off-the-charts football IQ. “He’s a very detailed guy,” Lattimore said in a phone interview today. “You can see why he’s so successful by the way, even now, he’s still always asking questions in meetings and doing the right thing. He’s one of the best running backs in the league and he’s had so much success. You want to see what he does to be that way. I’ll definitely be following every move Frank Gore makes.” Lattimore, who is one of 40 draft picks at the NFL Rookie Premier in Los Angeles this week, spoke with Gore on the field Monday during the 49ers’ “football school” practice and they also talked during a team meeting. Lattimore and Gore initially connected over the phone about six months ago — a few days after Lattimore tore three ligaments in his right knee in a game against Tennessee. They were put in touch by 49ers cornerback Chris Culliver – Lattimore’s teammate at South Carolina – and Gore’s encouragement came at a time when Lattimore wondered if he’d play football again.