MINNEAPOLIS -- The biggest challenge for new Giants general manager Dave Gettleman and coach Pat Shurmur will be rebuilding an offensive line that has been the team's biggest weakness in recent years.

To complicate matters, the Giants only have two starting offensive linemen under contract for next season. And veteran guard John Jerry and left tackle Ereck Flowers are hardly pieces to build around.

So, how can the Giants attack the line this offseason? Geoff Schwartz, who played offensive line for the Giants in 2014-15, laid out a position-by-position breakdown of what he expects:

*Left tackle: "Free agency is not the best this year. You have (Patriots left tackle) Nate Solder and there's not many beyond him. The draft is probably where you can get a good one in the second round. A guy I like is Alex Cappa from Humboldt State. He's a D-2 guy, blew up in the Senior Bowl. I've known him for a couple of years. He's really good. You put him and (Andrew) Norwell on a side and you're mowing people down. I don't know if his footwork is good enough to play left tackle in the NFL, but he's got a good chance."

*Left guard: "It sounds like they want (Panthers free agent) Andrew Norwell, which would make sense for Gettleman. He's a big, physical, tough guy. He'll bring attitude to the offensive line." Schwartz believes Norwell will command $13-14 million per year."

*Center: "I think what the Giants are going to do is keep Brett Jones at center. He's serviceable enough and he's cheap."

*Right guard: "John Jerry at right guard - his contract makes it easy to keep him. I don't know if they will or not."

*Right tackle: "I don't think they give up on Flowers because they need him to play. I don't know if they keep him at left tackle or move him to right tackle. You need a tackle no matter what.

"It's not like you just put him at right tackle and everything is fine. The thing about moving him to guard is he's got really bad hands. I moved from tackle to guard because I had bad feet. My hands were good, but I was too slow. You can fix that at guard - you don't have to move as much. But your hands are important at guard because it happens 'right now.' So, Flowers has bad hands. If his hands are high on D-ends, what's going to happen inside? I don't know. I'm not as high on him as really anybody is. I don't know if he's salvageable. I think you put him at right tackle, give him help and you hope things go well this year."

*Free agent center Weston Richburg: "Weston is probably gone."

*Free agent guard/tackle Justin Pugh: "Pugh is a guy who if it was (former Giants GM) Jerry Reese, he'd be signed 100 percent. But I don't know if Gettleman is going to have any attachment to him. That's the thing with new GMs is they don't have to attachments to players. Gettleman is going to have no attachment to Pugh. Pugh plays two positions. You can sign him to play tackle, but then you leave Flowers at left tackle. You put him at guard and you probably don't sign Norwell. Pugh is going to get paid. Somebody is going to pay him a lot of money. It's either the Giants or someone else."

Dan Duggan may be reached at dduggan@njadvancemedia.com. Follow him on Twitter @DDuggan21. Find our Giants coverage on Facebook.