I'm a drummer....drummers get fired all the time....perhaps you need to replace the drummer. My feeling is that if the others in the band are complaining about the drummer keeping time, then there is a real big problem. Drummers are not saddled with melody so they can use that freed up mental energy on playing in time. When you get better as a drummer you can play with time. You can play behind the beat, on the beat and ahead of the beat all depending on the style of music. Play behind the beat for great feel such like Zeppelin's Kashmir. Play on the beat ("like a good little well blended drummer") or ahead of the beat ala Green Day ("Makes the song sound manicky"). I would put the drummer in cans during practice and have them play to the click. Put the click through the monitors. Your goal as a band is to make the click disappear. I am personally the opposite...I feel uneasy when there is no click. It is hard to get tight, really tight, when everyone's sense of tempo is slightly off. Take the guess work out and blast the click through the monitors.
