My very brief take...
Secondary was pretty consistently beat up on...but it is day 1. Rodgers looked pretty comfortable out there and just has fabulous technique and positioning. Gainey was not as good as I thought he would be day one. Bingham will be a guy to watch as he becomes more comfortable. You could tell a lot of the new guys did no homework on the CFL so we will see how they look on day 3. Campbell got lots of primary reps...not sure if that was so the new guys could get their feet wet or if they are looking at playing him more or if they want to test him early because they feel a decision needs made there...but he got lots of looks.
RBs looked promising. They seemed to be ahead of the curve compared to most groups TBH.
QBs...In fairness there was a pretty good wind for the first day of camp...but it was not great. Glenn looked even better than I hoped but nobody else stood out. Young has a monster arm for the long ball and is nothing but potential but struggled underneath, and that is going to be an issue if it doesn't improve fast in this O. Mauk did not look good...no surprise. Bennett was disappointing from what I saw from him in the past. He came in ahead of Bridge in my books but here and now may be behind him...again..only day 1
Carter looked good...not just catching the ball but seemed to be a leader out there and was committing to plays he was not a target on...good to see...but he did look like he was going through the motions at times...some guys just naturally give that appearance though so I won't read too much into it yet. Stanford I didn't think looked good when I first watched him a bit but when I noticed him later seemed to be doing pretty well...he also set up as a returner a bit (interesting). So much talent out there in that spot it makes moving Edwards make a lot more sense. Bagg is still the best workhorse out there...impressive really...Fulwood...write that one down. He looked really good out there.
He is a keeper. He is going to be good.
They lined him up in a few spots and for his first pro camp he looked cozy everywhere.
They also tried a few different people under center...they don't have a 2nd center returning from last season (ok, Vonk I guess, but I think he is on the outside looking in) so I would expect we will see a bit of that and perhaps even in the exhibition a bit.
JSJ also looked pretty comfortable out there, and the best on the line was of course LaBatte
LBs I had a hard time following...but I wasn't watching them too much. They mixed up the assignments in there a bit...I think I may have even seen Gainey in there for a couple of reps?? Hunter seems like a front runner for strong side...thought it might be Rodgers until Cox had to be released. There was a guy I noticed made a few nice plays and I later learned that it was draft pick Gagne...so that is pretty cool to see.
I won't say much on the DL until it is an all out pads day.