Hamlin has been in the system for 3 years now. McD even said that safety is the hardest part of his defense to get acclimated to. He's going to be in and out of games at some point but I don't think it's a reason for concern.
I can't remember if it was day 2 or 3. MVS was running a route but apparently wasn't doing it the way (Josh/Brady/someone) wanted it a few times in a row and then Claypool came in and did it first time.