The Vikings are getting acclimated to the new coaching staff in their second day of voluntary veteran mini-camp on Wednesday. With that, the players are learning to make adjustments to new schemes and coaching styles.

One of the more drastic changes is on offense, where the Vikings shift from Bill Musgrave to Norv Turner.

"My head is spinning," Jennings said. "Even though the offense is coming and it's starting to sink in. Just with all the different change-ups we can present to the defense, the different looks, the different formations we can run the same play, the different variations that comes within the same play. Your head is spinning at all times until you have it down.

"The variations from one play to the variations of how we can get to that one play, is a lot. I'm being a little sarcastic with this statement, but it almost equates to what we had last year -- just one play. It's a lot."

Musgrave's offense, famously compacted into a nice little index card, was known to be bland and predictable. It doesn't seem that will be the case under Turner, which Jennings described as more complex.

Other notes from availability before Wednesday's practice:

*Vikings wide receiver Cordarrelle Patterson said he wants to improve on his work ethic this year. He was very critical of his ethic looking back on his rookie season.

"I was looking at film of me last year, looking at how I didn't finish," Patterson said. "This year, coach Zimmer, set the tempo high yesterday. My work ethic from last year to this offseason has improved."

*With Jared Allen and Kevin Williams gone, defensive end Brian Robison, who turned 31 last week, has become the ol' vet on the defensive line. With that, he understands there's a responsibility to become the leader of the unit.

"You never want to be called the old guy," Robison. "I had my birthday on Sunday and I thought I was going to be coming in here on Monday and have a walker in front of my locker. It's one of those deals where you've really got to kind of step up your leadership role, lead by example, be a little bit more of a vocal leader. But at the same time you don't really get to proclaim yourself as a leader. Guys have to think of you as a leader."