Being that actually knowing a lot is not required for this discussion, I will contribute.
We are a lot older at Dback than I remembered us being. We will have to take a couple of Jucos next season, but I think that means McGhee plays quite a bit for sure. He needs the experience for 2015, and so will any dbacks we get this season.
I do not believe Legania will be second team, his playing strength is strength, not speed, it does not fit the system especially when he is not that big. If he was going to play as a senior, he would have played a lot more the last two years. Hinojosa, Timms, Peppers will pay more.
I am worried about Bak and I have no more information than anyone else, but I don't like the signs with a single concussion knocks a kid out for months. Losing Bak really hurt the running game. I could see Campion moving to guard, he is built like a guard and is a mauler. Since they think Pirsig is going to be really good, letting him taking over at RT seems very possible. If he is going to be good he needs to play a lot more this season.
If Christenson can come back I expect Bobek to be the back up at center, if not I expect Bobek to be the starter.