Here are some interesting ones out of boredom...
#3: What if June Jones doesn't get fired after the 3-13 season in 1996? How would that impact Hawaii's future fate? Would the Run & Shoot have carried over at the NFL level into the early 2000s with Gilbride also being San Diego's HC in 1997? Does the "slot" WR become more of a staple earlier than 2007 after the explosion of Welker with the Patriots?
I'm gonna answer this one mostly because it just fascinates me. I do think Atlanta makes some noise by 2000 under June Jones with their offense. They draft a QB high in the 1997 NFL Draft and have a good nucleus with RB Jamal Anderson, WR Bert Emanuel, and WR Terance Mathis. Eric Metcalf moves on to San Diego after Kevin Gilbride gets hired there. Atlanta signs a free agent WR, maybe getting Haywood Jeffires to stick it out for 2 more seasons, and lands another through the '97 NFL Draft.
Atlanta probably drafts Jake Plummer high in the 1st Round instead of Plummer falling to Arizona in the 2nd Round. They likely take Dedric Ward in Round 2 (instead of the Jets getting him in Round 3) and take another RB late such as Nicky Sualua.
A few more teams experiment with Run & Shoot concepts but none take them on fully except for San Diego under Gilbride. I think June Jones lasts in Atlanta until around 2002 before he lands with the expansion Houston Texans. He makes a couple deep playoff runs but is mostly remembered as a guy who couldn't win the Super Bowl not unlike the early 90s Houston Oilers teams. Gilbride sticks with San Diego through 2001 but bounces around afterwards as an OC, maybe landing with June in Houston eventually. June eventually moves down to college in 2008 or 2009 with Gilbride taking over the Texans for 3-4 more seasons before he also gets fired.
The "slot" receiver becomes more of a trademark for teams by 2001-2002 with St. Louis' success on top of what Atlanta and the Colts' use of 3 WR sets. Passing numbers really take off in 2002/2003 instead of the late 2000s. NFL teams make more overtures to guys like Mike Leach from college to try and get an edge offensively in the NFL.
Hawaii ends up hiring Paul Johnson in 1999 as their HC where he revolutionizes the program with his Flexbone Offense. They become a solid mid-tier program capable of 9-10 wins in a given season but don't quite have the prestige they had under Jones.
The Run & Shoot as an offense ends up making a return at the college level at several FBS programs under guys who coached/played under June and Gilbride. It never quite hits the 80s heyday of Houston w/Klingler & Ware (or Hawaii in the mid 2000s) but it gets more respectability in the media as the Air Raid and other passing offenses get more focus.