My first batch of bracketology in a month shows how much has changed in just the last few weeks. The top four seeds are firmly cemented right now, but conference play is just beginning and things are going to shake up quite a bit before the NCAA Tournament starts.
Note: The bracket below is updated through all games played Sunday, January 5.
LAST FOUR IN: Tennessee, Texas, Michigan, Butler
FIRST FOUR OUT: Wake Forest, Arkansas, Minnesota, California
