For the fifth straight NFL Draft, the Denver Broncos did not select an offensive tackle at any point during the draft. Unless you count Dalton Risner (who has never taken a snap at OT in the NFL) or Luke Wattenberg who is expected to be an interior offensive line player for the Broncos.
If you use the old draft pick value method (the Jimmy Johnson values) or the Fitzgerald-Spielberger values the Broncos have invested the third least draft capital in the offensive line over the last five drafts. The F-S values make it look a little less drastic because they assign much more value to day three picks than the JJ valuation chart, but it still shows that the Broncos have chosen to mostly build their offensive line through late round picks, free agents and undrafted guys.