Filling out the D core? Pursuing a star free agent? What comes next for the Detroit Red Wings?

The Detroit Red Wings have major holes on their team. Between a lack of true #1 goalie, two top-4 D-men and top-6 forward, which is the biggest hole? And should the biggest hole be their top priority when high-profile players are hitting the market this summer? Also, if they can, should Detroit move on from players ON the roster? Detroit is reported to have moved on from goalie coach Alex Westlund. #LGRW