Major props to MassLive for getting these videos of the New England Patriots minicamp drills. They don't mean much, but you can make inferences about depth charts based upon the order and alignment.
Mostly, this is just a fun way to feel like you're at the camp watching the practice.
In this first video, we have quarterback Tom Brady throwing to his wide receivers.
Receivers Keshawn Martin (in the slot) and Chris Harper (on the outside) start off the drill, quickly followed by Chris Hogan (in the slot) and Aaron Dobson (on the outside).