Position depth in the draft.

[da_whiz_kid]

The players to go in the first round have a higher pedigree than those taken later. But my question is, and despite the variation of how deep a position may be year to year in each draft, which one on average are you more likely to find starters or moderate contributors later in the draft? If this is to broad of a question, then specifically apply that question to this year, specifically these positions.

NT
OT
OG
S
OLB
RB
C