There are always plenty of starters 6th, 7th, and UDFA. Opportunity cost by missing on Rooks. Here are some of the picks after Who? Rook:

ILB Jackson, W. KY (not that we needed any run-stuffers there; plus Hawthorne did so well)

WR Jeff Janis, Saginaw Valley St (nah, our WRs never get hurt and GB doesn't know how to draft WRs late, especially white ones)

ROT Seantrel Henderson, Miami (nope, he'd just be wasted being groomed to replace Strief and Armstead will never get injured...although Henderson started for Miami)

OLBs Smallwood (UConn) and Starr (S. Dakota)...silly to give up on Junior learning to keep containment and/or stop the run. Give him another year. 2015 for instance