author here! sorry for the broken footnote links, i fixed 'em.
There's a lot of documentation of those players' heroin and alcohol use. Miles Davis' autobiography has a list in it somewhere of all the players that were abusing substances; a lot of it had to do with their need to play gigs back-to-back through the night to make a living. As for the schedules, I think it was Miles' book, but I can't find it exactly ... because they played all night, and rehearsed early in the morning after the clubs closed, it was hard to keep a group on a predictable recording schedule. The majors wanted big names with well-known hit songs, and the loose ensemble nature, original compositions, and unpredictable improv of bebop was pretty much the opposite of commercially viable at the time.
Scott DeVeaux's The Birth of Beebop is a great source, too.
There's a lot of documentation of those players' heroin and alcohol use. Miles Davis' autobiography has a list in it somewhere of all the players that were abusing substances; a lot of it had to do with their need to play gigs back-to-back through the night to make a living. As for the schedules, I think it was Miles' book, but I can't find it exactly ... because they played all night, and rehearsed early in the morning after the clubs closed, it was hard to keep a group on a predictable recording schedule. The majors wanted big names with well-known hit songs, and the loose ensemble nature, original compositions, and unpredictable improv of bebop was pretty much the opposite of commercially viable at the time.
Scott DeVeaux's The Birth of Beebop is a great source, too.