Here is some quotes from Jenkin's QB and coaches: http://blog.sfgate.com/49ers/2012/05/08/all-things-a-j-from-his-nfl-position-slot-to-his-nickname-stank/
"I think they're looking to put him in the slot a little bit more in San Francisco," QB Scheelhaase said. "We would have loved to do that a lot, but when we put him in the slot it was easier for teams to double-team him. If you put him outside, you at least give him a chance to get in more one-on-ones and get him away from a lot of people.
"When we put him in the slot, there would be a lot of times where there would be a linebacker there and a safety with help coming from everywhere it seemed like. That's something he won't have to deal with as much with as many great receivers as they have in San Francisco."
* Jenkins had 90 catches as a senior. The Illini's second-leading receiver had 26. The disparity had something to do with the trust Scheelhaase had in Jenkins, an exacting route-runner.
"He's fast guy for sure, but he's a guy that runs great routes," Scheelhaase said. "He's real precise. From a quarterback standpoint, he runs the same route every time and he's in the same spot every time. It makes it easy on you. I was able to develop a rhythm with him. I was just confident he was going to make plays. And he ended up doing that quite a bit for us."
* One of Jenkins' best routes, Scheelhaase said, was a drag across the middle. Jenkins excelled because of his quickness and fearlessness.
"He's good at sticking linebackers, making them think he's going to do something else and either going over or under them," Scheelhaase said. "He's not afraid. That's the first thing you notice when you see him running that many of those routes. Linebackers knew he'd be coming across middle and he was never afraid to go there. He made a lot of plays in that area."
* In the first six games of his senior year, Jenkins had 46 catches for 815 yards and seven touchdowns. In his final seven games, he had 44 catches for 453 yards and one touchdown.
Zook said the drop-off had something to do with the extra attention Jenkins began to receive. He also said Jenkins would have benefited from better quarterback play.
"Nathan, as much as I love him like a son, we didn't get him the ball," Zook said. "Nathan is more a running-type quarterback than he is a throwing-type quarterback. We didn't do as good a job of getting A.J. the football later in the year."
Lastly, here is what Jenkin's previous coach at Illinois, Petrino says:
Petrino, who arrived at Illinois after Jenkins' 10-catch sophomore season, quickly recognized he had NFL potential. As the Falcons receivers coach in 2007, Petrino worked with Roddy White, who had the first of five straight 1,000 yard seasons.
"(A.J.) has great hands, number one," Petrino said. "Then you just start out on the JUGS machine and you're shooting him balls, he has nice, soft hands. He can catch balls at all different angles and he catches the ball away from his body all the time. He has great speed and then he has the ability to sink his hips and get in and out of breaks. He really has all the traits that you look for in a great receiver."
Sounds like AJ will be contributing this season.