He has some work to do as far as blitzes. But he is a tough, strong, scrapper. IMO, that is exactly what you want at center. I also think he needs to work on his shotgun snaps a bit. They seem weak and to barely get to AR sometimes.
Assuming both are healthy and will be healthy, do you prefer Tretter or Linsley?
No longer the member of any fan clubs. I'm tired of jinxing players out of the league and into obscurity.