Looks like the XFL and NFL will be working together on testing out some new rules, as well as health and safety changes, training of officials and coaches, and other things.
The NFL-XFL agreement will give the NFL a "petri dish" to experiment with proposed rules, test new equipment and develop prospective officials and coaches, XFL president Russ Brandon told ESPN.
XFL to provide NFL 'petri dish' as part of deal
The XFL, under its new partnership agreement with the NFL, will experiment with proposed rule changes, test new equipment and develop prospective officials and coaches.
www.espn.com