Just came across the original pilot script online:
http://tvwriting.co.uk/tv_scripts/2022/Drama/Quantum_Leap_1x01_-_Pilot.pdf
It's much stronger than what actually aired. Allison and Ben's relationship leaps (pun intended) off the page more. It spends more time in the leap dealing with the relationships Ben is there to fix.
Ben has a personal story of his own, similar to Sam's with his father in the OG QL's pilot. That runner ties in nicely with the A-story of the leap.
This version has more heart than what aired.
The mystery box stuff is there but it's at a minimum. Of course, there is more mention of Sam Beckett in this version.
Wonder why the swap? Network interference? Did they network think the show needed to be more procedural (which it feels like right now)? Didn't have faith that the audience would get it? Cause the pilot that aired was very by-the-numbers.