i actually wouldn't mind if they hired a second guitarist that was more technical than adam. you can't get rid of him because you would lose his art, which is masterfull ***. really though hes not even close to being on the level of musicianship to danny. so many of his riffs are just the same number of notes as the time sig because he can't keep up with danny.
my personal vote would be for buckethead to join the band, that would be insane.
when hes not trying to show off he plays some really interesting melodies
http://www.youtube.com/watch?v=61k041I4aEo

he could certainly keep up with danny on all levels too musicianship wise