What's expected of every team in NBA free agency?

Teams and players can officially negotiate new deals at 6 p.m. ET June 30, though preparations are underway already.

To help break down what's possible this offseason, NBA Insiders Bobby Marks and André Snellings lay out the realistic best-case and worst-case scenarios for each franchise. We're starting with the 15 teams in the Eastern Conference. We've also included cap-space projections and potential free-agent targets.

Which teams can quickly become contenders, and which ones are better off focusing on the future? Let's dive in.