Marcel Reece won’t be the Raiders feature back on Sunday, despite a unique ability to do so. The veteran fullback has excelled in every start as primary ball carrier, exceeding 100 yards total offense in four of five starts. Reece was never better against the New York Jets, when he had a career-best 123 rushing yards and 161 yards total offense. That deserves an encore he won’t get, because Rashad Jennings is healthy again after missing a game with concussion-like symptoms. Jennings will take the bulk of the carries, but Reece has earned more than the 3.7 touches he received before Jets loss. Whether he gets them or not is another matter. Reece has made himself harder to ignore, especially after a 63-yard touchdown that dispelled any notion that he doesn’t have breakaway speed. Even after all Reece has done, primary tailback isn’t a realistic option. “I don’t know. I mean, when he’s gone in the game he’s had some success,” Allen said. “He’s a pretty patient runner, has pretty decent vision. I thought he did a great job on the long run of being able to hit the hole and then split the seam. I don’t know. He’s probably not a guy with that explosive breakaway type of speed, but nobody was catching him. So when we’ve called on him to be a running back he’s gone in and performed admirably.” That’s not exactly a vote of confidence, not exactly proof that he’ll succeed Darren McFadden or possibly accent Jennings next season. The Raiders simply aren’t convinced he can handle a full carry load. They’d also like to continue to use the converted receiver as a jack-of-all-trades, as a blocker and rusher and pass catcher.