I'll have to disagree with you with Frederick and Arkin. I thought that while Frederick looked good at center, he looked pretty bad at guard and almost got Tanney killed. There were a couple good runs behind Arkin and he was solid in pass protection.
Guys that did impress me: ARKIN, Frederick, Leary- The interior of the oline looked better than it has in a long time. Arkin did get bull-rushed one time, but his pass protection was fine most of the time, and did well in the running game. (I would add Selvie and Wilcox to this list, but I only get three by the criteria and Oline has been our most pressing concern. Wilcox is a rookie and was out of position sometimes, but he was making a lot of tackles. More than any safety we've had since Woodson/Williams.)
Guys that did not impress me: Pellerin (didn't even know he was on the roster until tonight. Probably not fair to put him on this list.) Escobar has a long way to go on his blocking. Weems can't handle a speed rush. Playing on the left side, he has to be able to do that. That is where speed rushers come from. (with that said, I don't really expect him to be anything other than Practice Squad this year anyway. So, I really shouldn't put him on this list.) Hmmm, okay, scratch Weems and Pellerin off of that list.
Okay, the REAL did not impress me list:
Escobar. As previously stated.
Beasly. He is not a good kick returner or punt returner. Just a quick slot receiver who didn't excell at that tonight either.
Tanney. Made one exceptional throw to Green, but seemed to have trouble seeing the field and he fumbled the ball.