Swole and FLEXY - get your mobility on
This is a great article regarding mobility...
https://gmb.io/crossfit-mobility/
There are specific movements, video and ideas as to why some might have flexibility issues. Additionally, this article offers a program (a free shoulder one) and one that you can buy into. Some in the gym are already following ROMWOD (a daily yoga workout programmed specifically for CrossFit athletes).
WOD for 6/1/2017
10-15-20-25-30-25-20-15-10 SIT UPS
200M AFTER EACH ROUND