ARG WRONG ANSWER
You need a percussionist, not a drummer. I am a percussionist as the ministry leader of Heart song says. A drummer doesnt know when to slow down or speed up, a drummer doesnt know anything about dynamics. A drummer doesnt know what goes well with a song. A drummer doesnt know when to drop out when he or she needs to.
A percussionist knows all these tricks. A percussionist can read the music and play it. A percussionist can feel the music. (what I do) A percussionist can be loud quiet or anywhere in between to mix.
So i would say change the drummer to someone that has matured into a percussionist or train him to be a percussionist.
PS. im not trying to hold over anyone that I'm better then anyone. I'm just stating what I believe a drummer needs to be, A PERCUSSIONIST.