The second part of our 2017 Summer Guide is position previews. For each position, we'll outline who's returning, who's gone and what the big question facing the unit is before finishing up with our projected depth chart for each position.
Next up, we have the offensive line.
Overview
Returning starters (career starts): LT Blake Hance (21), LG J.B. Butler (7), C Brad North (18), RG Tommy Doles (13)
Key losses: Connor Mahoney, Shane Mertz, Eric Olson
Other returners: Jared Thomas (R-So.), Andrew Otterman (R-So.