*PURE SPECULATION*
so, I know from watching too many interviews and ready too much about cal football, that Moose was actually 100% cleared to play. It was simply a pain issue. Now that Dykes has confirmed that the surgery involved cartilage, it further confirms the pain issue. He probably wouldn't really damage it anymore (why he's cleared to play), but the lack of cartilage is likely going to make his knee feel like crap. Pain tolerance.
This is why Sonny is like, "we have to be able to know the difference between injured and hurt". I think Sonny was including Moose in that and thinking he is more hurt than injured and that he should be on the field.
Oh well, hopefully they fix his knee, but I'm not sure how this will affect Moose going forward. There might be a staff issue.
This goes the same for Forbes. Forbes is cleared but his back just bugs him. It's going to be a chronic issue that will affect him for his whole career. I don't really expect much from him going forward. It's Hardy's spot now and I think he is doing well, and will be a good one for us.
As for Scarlett. He's actually not cleared to go. So, it's a different situation for him. I really hope he is back 100% next year, but I'm not expecting him back this year.