As OTA's wind down and players being their month "off," some of them will be putting in extra work on their own to try and gain the advantage for the upcoming battle they'll face in training camp. Most of the battles, especially on offense, won't be for who wins starting positions, but who will make the final 53 as the first line of reserves, and who will get a chance to be a member of the practice squad.
I already took a way too early look at who I think will be the final 53, but as I mentioned in that piece, there is a lot that still needs to happen between now and that final cut.