Sure.
My take is that I try to remember U2 was a band that started out from scratch - they were still learning to play their instruments at the time they formed a band, and they kept pushing to grow, to be discovered, to make great music and break out into the world while still figuring out how to write songs and play them. They learned from other bands, from the music they listened to, and from the producers who came in to help them beat their songs into shape. The creativity, to me, was mainly U2, but their methods to turning that creativity into 'product' were always a tad nontraditional.
Their songwriting has always been multi-directional. Even hearing them talk about SOE and how the producers say they approach music in a very different way, about how no song or idea is sacred until the last minute, where things can change up until the record is pressed - reminds me of the same old U2.
I always thought of U2 as a band that had very good ideas and very, very good ears for songs and sounds. They'd come up with little nuggets and then try to jam around it and listen for songs to emerge. Producers would suggest, direct, try to include a inspiration here and there. Eno always talked about how he'd have a little loop going to provide a platform to start with. I think U2's not hesitant about taking those inputs and keeping them if they fit the song. And that's the thing - for a band that sound so much like itself, they're pretty self-less about including any component that fits, if it fits. It's about the song.
U2 has their working arrangement set in stone: U2's 4 members get equal credit for everything. Anyone who works with them needs to accept that going in. Whether a producer gets a flat fee, or a percentage, or whatever, can vary depending on their involvement and the initial arrangement. And if, say, Tedder did come up with the guitar part and the 'Thinking 'bout the West Coast' portion of the song, and has no problem with U2 taking it and helping flesh it out into a new, U2 song then that's how the creative process went with *that* song. Same thing with the sample with Do You Feel Loved - they took it, Edge played it his way, and it became part of a larger U2 song. Other tunes may have a simpler, more straight-forward genesis with U2 doing most of the musical work, and a producer just tweaking, adding some bells and whistles and whatnot.
To be a fly on the wall in those sessions, right?