A closer look at the positions the Minnesota Vikings could target at the NFL combine in Indianapolis:

Positions of need: The Vikings made it clear they're looking for more from their offensive line when they replaced coach Jeff Davidson with Tony Sparano, and they'll likely look for help for a group that allowed quarterback Teddy Bridgewater to be pressured on almost one-third of his dropbacks last season. They also could look for help at wide receiver, especially if they decide to move on from Mike Wallace rather than paying him $11.5 million next season. Wallace could return on a restructured contract, but even if he does, the Vikings could use a big target for Bridgewater.

Josh Doctson has the kind of size (6-2) that NFL people want to see in a wide receiver. Reese Strickland/USA Today Sports

Three players the Vikings could focus on at the combine:

Cody Whitehair (G), Kansas State: Whitehair has played both guard and tackle and could make sense for the Vikings at either spot on the right side of their line, where Mike Harris is a free agent, T.J. Clemmings struggled as a rookie, and Phil Loadholt is trying to return from a torn Achilles. He has drawn comparisons to Cowboys guard Zack Martin, and while he'd have to adjust to powerful inside rushers in the NFL, he's seen as a tireless worker who could step in right away.

Josh Doctson (WR), TCU: He's another gym rat who would give Bridgewater a 6-foot-2 target who can take balls away from defenders. Doctson comes to the NFL after playing in a spread offense and would have to learn a full set of routes. He also broke his left wrist in November 2015, which makes his health something of a concern heading into the NFL, but he'd likely put in the work to grow in the Vikings' offense.

Corey Coleman (WR), Baylor: Like Doctson, he comes to the NFL from a spread offense, and at 5-10 he might be a little too similar to the receivers the Vikings already have. But he's an explosive deep threat whose vertical leap and quickness will help make up for his lack of size.