Coaching hire will tell us if things truly have changed with Timberwolves

The rapid response to the Timberwolves’ decision to hire Gersson Rosas as their basketball boss was largely positive, both from the media and in public comments. This is based on the idea that owner Glen Taylor and his new favorite executive, team president Ethan Casson, have gone beyond the chummy confines of the Target Center/Mayo Clinic Square complex to hire an outsider.

Of course, the Timberwolves also went outside those walls to hire Tom Thibodeau as both the basketball boss and coach following the 2015-16 season. Thibodeau had served two seasons as a young assistant to Bill Musselman, but The Muss was fired in 1991 and Thibs had no true connection to Taylor’s organization.

Casson had…