We've been reading the same reports, Miller has struggled this off season. I suppose you could blame that he isn't a fit or is having issues adjusting to this zone blocking scheme which you could put the onus back on the HC/OC. But this is the system that they chose and they need players to be able to excel within their system. They want to build the team in the vision that they have and I have no issue with that.
My hopes are that they go with Miller and hopefully he'll be able to adjust to this scheme throughout this year so that they don't have to draft another player.
In regards to Sammy, we've talked about this and Gabriel makes the exact same point that I did. They simply didn't believe he was worth the financial risk due to his lack of production (due to injuries) and signability. You can disagree with it, but It's a rational decision to make. You either believe he is going to be healthy and be an All Pro or you don't. They believed the latter and didn't want to have to pay huge bucks to find out.