With another New York Giant added to San Francisco’s roster, it looks like 49ers running game has added the final piece to the puzzle. It was initially reported that the 49ers reached a one-year deal with the running back, and then later reported that the deal is for a maximum of more than $2 million if he reaches all of his incentives. With the signing of Mario Manningham and Jacobs in the last couple of weeks, the 49ers have added two players from the Giants’ 2011 winning Super Bowl team. With Jacobs in the mix, the 49ers won’t be looking for a running back to accompany Frank Gore. It also means that Kendall Hunter will serve as the team’s change-of-pace back, and Jacobs will fill the situational role of a short-yardage and red-zone back; including fullbacks, the 49ers now have six backs currently on their roster. I think the most important aspect of signing Jacobs is that he can help Gore carry the load if necessary. With his injuries in past seasons, a strong partner will ease the workload on Frank Gore if he gets hurt again. Some fans seem skeptical about the signing of Jacobs, but I think Coach Harbaugh definitely knows what he’s doing, and this is another step in the right direction for San Francisco’s offensive line.