In an Insider piece, Pro Football Focus lists San Francisco 49ers' linebacker NaVorro Bowman as one of the NFL's better players in December.Actually, Bowman has been playing at a high level all season. He is a force on all aspects of the defense, ranking fifth in the NFL with 124 tackles.Tuesday, San Francisco coach Jim Harbaugh told San Francisco radio station KNBR that Bowman should get consideration for the NFL Defensive Player of the year.