NBA playoffs 2021: What the Portland Trail Blazers need in a new head coach

Can the Portland Trail Blazers' next head coach find more balance after the team mutually agreed to part ways with Terry Stotts on Friday, as reported by ESPN's Adrian Wojnarowski?

Led by the high-scoring backcourt duo of Damian Lillard and CJ McCollum, the Blazers have boasted a top-three offensive rating in each of the past three seasons, including No. 2 overall in 2020-21.

Yet after a league-average defense (16th on a per-possession basis) facilitated Portland's unexpected run to the 2019 Western Conference finals, the Blazers have had difficulty living up to the expectations that generated because of defenses ranked 27th on a per-possession basis in 2019-20 and 29th this season.

With Portland's ability to upgrade the roster limited by big extensions for Lillard and McCollum that kick in next season, the Blazers have to hope that Stotts' replacement can upgrade the defense without sacrificing what has made the team special on offense. What's the track record for teams attempting to pull that off? Let's take a look.

Imbalanced coaching change history

In theory, the idea is simple: Because an offensive-minded team already has the pieces in place to score efficiently, it can just hire a defensive-minded coach to improve at the other end of the court. In practice, it hasn't worked out quite that way.