What made U2 become U2 is that ability to be both. To release albums like Zooropa & The Unforgettable Fire that have a creative, innovative approach to music, with a real and true soul and depth, but dress it up in all the most successful and memorable pop sensibilities for the masses. Take one away from the other and they are simply not U2. That's one of the reasons why Passengers was put under the name Passengers, not U2. It was a step too far away from what was U2. It's the reason why that journey ended there and hasn't been repeated. These two albums are different because of their mammoth commercial success. I do think the band, given the choice, will take biggest over best. And that's where the challenge is for them. I imagine that in the current environment within the band, a Zooropa or Unforgettable Fire will be trashed and turned into a safe Bomb. The challenge to them is to realise that straight smack in the middle is the best for them, and that's a damn tough thing to do. It takes a lot of blind faith in themselves, and not second guessing their instincts. The challenge for them is to be the biggest AND the best, ie, to keep all parties happy, but most importantly to reposition U2 back where they were. Those that love U2 for their great, tight, sing along songs for the everyman. Those that love U2 for their ability to write the most amazing songs from the soul, that do challenge and embrace you as a fan and take you for a ride, emotionally, musically & sonically. Those within the band that want to stay true to their natural musical development and urges, and those within the band that want to stay true to the mammoth U2 brand name and all that it is worth commercially. An album whose songs will be played alongside Gwen Steffani and Rob Thomas on the average shitty commercial FM station and will gain all the MTV/Top 40 recognition in the world, but songs that will also be played alongside Interpol and Wilco on the more alternative stations and gain all the true musical respect in the world. At the moment they are getting all of one, but none of the other.
So.... at this stage, they need an Achtung Baby or Joshua Tree. The challenge there for the band is to have the balls to aim for that, but be prepared to not quite get there. To get a Zooropa instead of an Achtung, to get an Unforgettable Fire instead of a Joshua Tree. I don't know if they have that in them....
Does that make sense? That's the best way I think I can explain it (and, believe it or not, the shortest).