By Kyle Wood Breaking down the SI Sportsbook wins total projections for every NBA Western Conference team. As per usual, the NBA offseason shook up the league’s landscape. Trades, pending returns from injury, new injuries that popped up, free agent signings and coaching changes all contributed to how each team’s regular-season outlook changed over the summer, some more than others. There’s somewhat clear tiers of contenders, playoff teams, playoff hopefuls and teams simply looking forward to the draft in the spring. Ahead of the season opener on Oct. 18, SI Sportsbook has over/under projection…