NFL tables Eagles' proposal to replace onside kick with fourth-and-15 attempt. It would've made a big difference
NFL rule changes: Expanding uniform numbers available to players could lead to increased sales - The Athletic
Fun alternative to the onside kick among NFL rule change proposals - Footballscoop
A look at the proposed NFL rule changes, and how they may affect the Eagles
XFL's 4th-and-15 'Onside Kick' Has Fans Hoping NFL Will Adopt Rule Change, News, Scores, Highlights, Stats, and Rumors
What will Philadelphia Eagles do at safety in NFL free agency?
The NFL Is About to Use 2021 Tech and Data to Change the Game for 2022
NFL to consider fourth-and-15 alternative to onside kick, delaying coach hiring cycle - The Washington Post
Channeling Freddie Mitchell: Eagles to propose 4th-and-26-like onside-kick alternative at virtual league meeting
Seven NFL rule changes proposed — including an onside kick alternative - Arrowhead Pride