My band is preparing for our first post-Covid gig in a few weeks (technically a livestream gig but a gig nevertheless). We've had a few rehearsals so far but I've been frustrated with our drummer. He's a nice enough guy and technically quite proficient (especially with fills) but he has a hard time keeping a consistent tempo -- he often speeds up a lot to a point where the singer(s) are out of breath by the last verse. He doesn't seem to respond to cues from the rest of the band members -- if I or the bassist purposely try to play slower behind the beat to bring it back a bit, he does not seem to hear it and so it ends up sounding sloppier in the end. His fills often are flashy and don't fit the song either -- it ends up sounding something like Neil Peart playing on Neil Young's "Harvest". He also either does not hear the feedback we offer -- we'll suggest something different (I also play drums) and seconds later, he's back to playing what he originally was -- or else he gets defensive about it. He likes to drink alcohol a lot during rehearsals and tell long stories, which is sometimes entertaining but also frustrating when we're trying to decide on a setlist and tighten up the arrangements. We had another more solid drummer previously, who is still technically part of the band. Unfortunately, he's been fairly busy with work so it's hard to get him to attend rehearsals, and I get a feeling from the other band members that they don't like his style, especially with their response when I suggested we get him in to play instead. Any ideas what to do in this situation? At the end of the day, this is just a hobby so it's not a huge deal if we blow the gig but at the same time, I would like for us to sound good, especially since this is our first gig in almost two years.