Mike White is a terrible QB. He's worse than Mitch. I don't care how far back you need to go to find decent play for Trubs: it's there, despite it being his first couple years in the league.
White doesn't have the arm or the skills to play meaningful snaps in the NFL. He has one game against the Bengals when he came in and played decent, but look at his throws from that game. It was like the Bengals forgot how to play defense on short throws.
He's an unknown, so he's a bit shiny and interesting sitting there on the bench. The shine will wear off very fast and you'll be left with a turd in your hand I promise you. Mike White is Tim Boyle, Nathan Peterman, Jeff Tuel level.