The Vikings have skill position problems, sure. But last year was also enough of a mess that General Manager Rick Spielman is thinking about changing the way he evaluates other positions.

According to Matt Vensel of the Minneapolis Star-Tribune, the Vikings G.M. acknowledged their offensive line issues last season, and studied other rosters to see if they were drafting them incorrectly.

Spielman looked at the correlation between draft placement and NFL success — and surprisingly found that guys drafted higher were usually better. He admitted that a “much lower percentage” of linemen taken after the third round were productive blockers. In the last 10 drafts, he’s only taken two linemen before the fourth round.

“There’s different ways that I had to look back and see, ‘What are we doing right or wrong with this offensive line and how do we get it addressed?'” Spielman said. “That was a whole focal point on a lot of the studies and a lot of the analytics that I have been doing since the end of the season.”