Lakers, Celtics, Bulls among five NBA teams that could improve the most due to key offseason additions

These franchises were all very active in free agency

The NBA offseason is all about improvement, both individually and from a team perspective. Organizations use the summer months to adjust their respective rosters, with free agency serving as one of the primary vehicles of change. When it comes to cultivating that improvement, some franchises are more successful than others. With that said, here's a look at five teams that could improve the most this upcoming 2021-22 campaign thanks to their offseason additions, along with their projected win totals for 2021-22, courtesy of Caesars Sportsbook.