Orchard Park, N.Y. -- In 2017, Sean McDermott's Buffalo Bills established an identity as a team that won by playing sound defense and controlling the ball on offense with the running game. The only problem is both Buffalo's offensive and defensive line have issues.

So it makes sense that plenty of NFL Draft analysts expect the Bills to address those issues in the 2018 NFL Draft. The latest prediction comes from Rotoworld's Josh Norris, who released a new mock draft on Monday. In it, the Bills address both the offensive and defensive lines.

First, at pick 21, the Bills take Washington defensive tackle Vita Vea.

"Interior defensive line and linebacker play are two critical factors in a Sean McDermott defense," Norris writes. "Vea is outstanding against the run and would create space for defenders behind him to run free."

Vea has been linked to the Bills often. He's an enormous presence in the middle of the defensive line at 340 pounds but also flashes the pass rush moves to be an every down lineman in the NFL. With the Bills trading away Marcell Dareus last season, the team has a need for a space-eating presence on the interior of the line.

With pick 22, Norris gives the Bills Georgia offensive lineman Isaiah Wynn.

"I absolutely love Wynn's game," Norris writes. "One scout said his future could be at center, and the Bills have a need at one guard spot (potentially another with Richie Incognito aging) and at center with the likely retirement of Eric Wood. Where does that leave the Bills at quarterback? I don't know, but Kirk Cousins is possible."

Wynn has the potential to be a stud at either guard or center. He played tackle in college and that shows in his quick feet. But his body type and brute strength make him a fit on the interior of the line. The Bills could use help at center and guard, so Wynn is a name to keep in mind for Buffalo.

Of course, the issue with this mock draft is the Bills would be missing out on the top quarterbacks in this draft. In this mock draft, Louisville's Lamar Jackson and Oklahoma State's Mason Rudolph are the top two quarterbacks left on the board. At that point, the Bills could very well elect to pass on the position. If they do, Vea and Wynn would be a solid haul.