2. Dalton Risner, OL
When healthy, Risner likely wouldn't start on Dallas' offensive line. However, the team has real questions about who will open the season at left guard.
Tyler Smith feels like the frontrunner, but that could hinge on Terence Steele's rehab from ACL surgery. If Steele isn't healthy, Tyler Smith could slide over to left tackle with the elder statesman Tyron Smith, the current favorite to start at left tackle, shifting to right tackle.
That would create a gaping hole at left guard, as the Cowboys surely don't want to start Chuma Edoga, rookie Asim Richards or Matt Farniok.
Risner, meanwhile, has started 62 games at left guard in his four-year career. He'd cost something around $7-10 million, but it'd be a worthwhile investment.
Last season, Risner posted a 72.6 pass-blocking grade, per Pro Football Focus. He allowed 26 pressures, six QB hits and just three sacks. Behind kicker, a veteran interior linemen is Dallas' biggest need before training camp.