MOBILE, Ala. -- When Mike Zimmer got his first look at the Minnesota Vikings' position-by-position needs in their initial draft meeting last year, his immediate reaction was shock.

"I was like, 'Oh my goodness -- look at all those holes we have,'" Zimmer said. "We're way ahead of where we were at that point [last year]. Some of the guys we brought in last year really helped. We've still got some spots we've got to get a lot better at, but I think we're going in the right direction."

General manager Rick Spielman talked last week about the Vikings having identified eight needs during their organizational meetings; Zimmer elaborated on that idea Wednesday at the Senior Bowl, saying the Vikings have eight positions where they want to get better in 2015. He and Spielman haven't mapped out a complete strategy for how they'll address those needs, Zimmer said, but the coach thinks he and the general manager have similar ideas of what the Vikings should do next.

"I like hanging out with Rick, anyway -- like last night, we had dinner. We sat in the press box yesterday," Zimmer said. "We drove over to the other practice yesterday, and he comes in my office, and we'll talk about things. It's good being able to hang out -- like last night at dinner, I bet we talked for two hours, about things I want to do better, and his impressions of things. It was good."

One of those needs could conceivably be at cornerback; Spielman said last week the Vikings signed Captain Munnerlyn last March with the idea of playing him primarily in the slot, until the Vikings realized Munnerlyn in their base defense, as well. "He was the best guy in both spots," Zimmer said. "He's probably a nickel corner. That's probably what he is."

Munnerlyn, of course, beat Josh Robinson out for the second cornerback spot in the Vikings' base defense, as Robinson struggled with a hamstring injury during training camp. He hung onto that spot all year, but if the Vikings can add another cornerback this offseason and make Munnerlyn exclusively a slot corner, they'd be in pretty good shape in the secondary. It's possible Robinson would develop into the No. 2 corner, as well -- and as Zimmer said Wednesday, teams spend so much time in sub packages that a slot cornerback is effectively a starter in the modern game. But the Vikings stayed relatively healthy in the secondary in 2014, and adding another good cornerback wouldn't be a bad investment in any case.