Four days remain until the Saints open against the Cardinals, and Kool-Aid McKinstry takes over No. 4, signaling a fresh, youth-driven rebuild in New Orleans. The No. 4 jersey has a notorious lineage for the Saints, spanning kickers, punters, and a Katrina-era quarterback disaster, before Derek Carr’s two-season stint showed both promise and misfires. This year, the No. 4 is tied to a developing secondary as McKinstry anchors the defense. Week 1 becomes a litmus test for the Saints’ retooled back end and how fantasy players should weigh defensive upside, turnover potential, and the long arc of this jersey’s history.