Yeah, he does okay most of the time but there have been some questionable things. At one gig, the next town away from us, we showed up and it became apparent that sound was being provided, and we had loaded and hauled our PA. Things like that should be discussed early on in the booking stage. Many times our LG will text "is there a backline" and the BL will text back "I'l check." He should already know when he books a gig if there is a backline or PA provided. IMO.
Holy crappola - Sounds like basic gig-prep 101.
We worked with one agent/event planner who never sweated the details, hardly ever showed up at a gig to insure success - unless the client was a huge hotel and it suited her marketing needs. One wedding reception where the wedding itself took place after sunset in super-nice hotel courtyard in pitch black darkness because she failed to secure lighting; Plenty of events where the hotel flipped the ballroom too fast for us to setup and soundcheck before guest arrival, despite our own rider inclusion (which she had but would never sign); Hotel electricians who wouldn't bring power to the stage until right before downbeat; Mostly predictable and 100% avoidable stuff.
We showed up to one of her gigs at a high-end hotel to find the staff had set up our stage perpendicular to the back wall, fashion-show runway style. Again the agent was MIA, and the hotel staff seemed to be on an extended break drinking a lot of wine. And there was the French language barrier (don't ask).
OTOH, we had another agent who was always present, physically and of mind. Our first engagement with her was playing a well-paying restaurant/club venue where she had the lock; We were a last minute sub for The Dixie Chicks in their early days, whom she'd found a much higher paying private event for. Agent showed up as we started to sound check and asked, "where are your lights?"
"Uh, we thought the venue would have lights."
"Listen, I'm not going to say this ever again. Don't ever show up to one of my gigs again without lights, got it?"
Yeah, that's not exactly what she said, but since this is a family-friendly forum, well, you get the idea.
Point is, she had a head for details, booked us for a ton of private events where all kinds of things can go wrong, and every one of her gigs went off without a hitch. She was a good business partner, and we could always count on her to have our backs.
(And we never, ever, ever, ever wanted to make her angry.)
IME, THAT'S the kind of person a BL should be.
I sincerely hope your guy doesn't hold out too big an extra cut for BL duties. Like @pepj mentioned, sounds like he doesn't have the BL thing down too well.