I don’t quite understand the question here, unless your gig bookings are done in an entirely different way.
I was the only person in our band who sought and booked the gigs.
Firstly, all the band members have full commitment to the band and are not involved in any secondary projects, so zero conflicts of interest.
I contacted the venues and they gave me the dates they had available, I checked our band calendar which showed dates specific band members were not available, if all band members were available for the available gig dates, the gigs would be booked, no gig was ever booked unless all the band were available to do it.
The extremely rare occasions we had to use a dep was if a band member fell ill just before a gig.
This ensures with all things being OK, we have 100% commitment.