The Bears didn't wait long to address their most glaring remaining weakness . The prize of their free agent class, Coby Bryant, will obviously hold down one of their starting safety jobs, but his counterpart was previously a question mark. Chicago just turned that question mark into an exclamation point with the selection of Oregon safety Dillon Thieneman with the 25th pick. Ryan Poles vowed to take the best player on the board regardless of the position, and they stayed true to that formula in the first round. They bucked conventional wisdom that says teams can wait to find a starting safety. While they might not have added a premier position, they still landed one of the most instinctual players in the class. History is also very much on their side, as safeties have one of the best hit rates among the positions that they could've conceivably targeted this year.…