The 49ers named their starter for their first preseason game against the Raiders and J.T. O’Sullivan gets the starting nod. O’Sullivan will start and play up until the half of the second quarter, with Smith coming in next and Hill to finish the game. J.T. gets the start because Nolan says he is less familiar with him than he is with Smith and Hill.
“We have experience with Shaun and Alex in game situations, and we do not have that experience with J.T. O’Sullivan.”
Nolan also mentioned that this doesn’t mean J.T. is atop the depth chart, that this is only who will start on Friday.
Source: Matt Maiocco