Giants have offensive linemen and it'll be better next season. The injury to Andrew Thomas made things worse last season. Evan Neal could potentially move to Guard, they brought in the RT from the Raiders and already have a Center to build on with John Michael Schmitz (who also missed games due to injury midseason).
I imagine they'll draft OL at some point, specifically at the G position, but doubt it'll be on Thu.
Finding Jones' eventual replacement is more of a priority IMO.