When he was there in the sixth round, the Titans had to take a flier on him. Now that he's the starter, the job is his until he loses it. He's got every opportunity to establish himself in the NFL, and he could end up being a very good NFL quarterback.
Steeler Nation will get a closer look at him on Monday night, and we'll see whether he looks more like Ben Roethlisberger ... or Landry Jones.
For what it's worth, while Mettenberger is a starting quarterback in the NFL after lasting until the sixth round, the Steelers' two fifth-round picks are no longer with the team. Cornerback Shaquille Richardson (157th overall) was placed on the practice squad reserve/injured list on Oct. 17th and subsequently reached an injury settlement with the team; and offensive lineman Wesley Johnson (173rd overall) was released on Oct. 13th and then claimed off waivers by the New York Jets.
Memphis Daily News: How's Mettenberger doing? Same as other rookies
ESPN: Mettenberger not holding onto the ball long most of the time
The Sporting News: "Zack Mettenberger has six weeks to prove he's worthy of the Titans' trust"
Sports on Earth: LSU Pro Day Report