Broncos will focus on offensive, defensive lines at combine

ENGLEWOOD, Colo. -- A closer look at the positions the Denver Broncos could target at the NFL combine in Indianapolis:

Positions of need: The Broncos have needs on the offensive and defensive lines. The offensive front continues to vex them, and this is the third consecutive offseason they will conduct a makeover there. It’s possible they could have three or four new starters up front. Center Matt Paradis is the only given starter on the offensive line, and he’s recovering from surgery on both hips. On the defensive line, DE Vance Walker and NT Sylvester Williams are scheduled to be unrestricted free agents. Throw in the fact that Derek Wolfe has played 16 games in one of the past four…