In a drummer, you should look for humbleness (if that's a word). Like most other people, if they talk about what they can do, all the lick, more than likely they'll play out of pocket. With that being said, also look for pocket. You will also need someone that's willing to learn. You have alot of drummers out here who eill play what they want to play, not focusing on YOUR GROUP'S style of music. You can never go wrong there.
God Bless