And yet, in the overtime, after Mathews put them down near field goal range at the Denver 32, he mysteriously was relieved in favor of Mike Tolbert, who lost 4 yards trying to go wide. It might have been just enough for Nick Novak to barely miss what would have been a game-winning field goal."I’m calling a play based on personnel on the field," Turner said. "He came out and I don’t know why he came out."If the head coach calling plays doesn’t know, who does? Maybe they didn’t want Mathews to get hurt.Is it really possible that Canepa has no idea that Tolbert plays 75% of the third down plays and 95% of crucial third down plays because of his superior pass protection? It's very standard for this offense to yank Mathews for third down. It turns out that I learned something new from Jay Paris this week:"I don't know why he came out,'' said Turner of Mathews, and if Turner doesn't know, who does?Turner said running backs coach Ollie Wilson handles the substitutions, and well, that's about all the reasoning Turner had.It's fascinating that an assistant coach controls when Mathews and Tolbert go in and out, and that Norv then makes his call subsequent to the RB decision. I always imagined that personnel, formation, and play call was all inside of Norv's beautiful brain. Obviously they are executing a coordinated philosophy, but it seems like there may have been a disconnect between Wilson using the standard formula of Tolbert on third down without knowing or realizing that Norv was going to call a field goal concession run.