I notice that too. I am hoping that it is him working on some things he is not as comfortable doing. Its a luxury you have when you have the job locked up is you can use practice to experiment a little and improve your game rather than always going with your best play. An example is those back shoulder throws they have been talking about. You need to practice them and figure out which players you can be successful with that. Weeding through the good and the bad ideas is part of what practice is about. When you have the job locked up, practice is just that. If he is throwing them when the regular season rolls around, then I get worried.
I had the same thought and hope that is what it is. They did mention that he has been working on certain throws to become better at them.
Maclin reportedly pulled up lame after scoring a TD today in the rain in the joint practice against the Pats. Not sounding serious but I don't see any realistic chance that this guy plays 16 games. They reportedly played him in the slot some yesterday. I see Matthews moving outside by midseason.