By Hunter Hodies The Las Vegas Raiders made a curious decision a few months ago when they declined Josh Jacobs’ fifth-year option. Jacobs has been very productive in his first three NFL seasons but perhaps the team wants to see if he can keep it up in year four. When Jacobs saw the news come out, he didn’t take it personally. He sees this opportunity as a chance to prove himself. “I’m a firm believer that the work that you put in is going to pay off for itself,” Jacobs told Mark Inabinett of Al.com (first transcribed by ProFootballTalk). “I had to be here either way. This is where I want to be…