Getty Vikings coach Kevin O'Connell After watching Sam Darnold take a playoff-record nine sacks in a season-ending loss to the Los Angeles Rams a year ago, Minnesota Vikings head coach Kevin O’Connell made a mandate that the interior offensive line must improve. That did not happen despite a massive $43 million invested in guarantees for former Indianapolis Colts starters Ryan Kelly and Will Fries , along with the selection of Donovan Jackson in the first round of last year’s draft. While the