Wow, guess I need to proof read what I post (oops), started typing one sentence, changed my mind, went on to another thought and got distracted. Now I can't remember where I was going with either. I think it was something to the point of what you said, but I've shoveled too much snow today to think straight.
As far as Tomlin, I agree. I honestly think it is better if they know right now and prepare not to have Pouncey in than to have him go down on the first series of the game. Plenty of time to have Ben work with Legursky and have the Steelers work on a game plan for dealing with Raji.
He's sticking with Chuck Noll's "Next Man Up" system, where he believed that no individual made or broke the situation. Everyone on the team is valuable and has a job to do.
Rather like what the Packers have had to deal with this season with all their injuries.