They didn't let anyone go who could play, they kept Landry, traded Thompson to GS to dump his salary, GS then cut him a couple months later. McGee was given a shot, then dumped, and so on.
They only had two NBA caliber starters (Holiday, T Young, the rest were backups, Turner, Hawes, Allen, et al and all were a year or two from free agency). Young was a year from free agency and probably wouldn't have resigned, they got Miami's 1st (LuLu), A Moute and Shved? who was traded for another 2nd. Holiday was traded for Noel and a 1st which was traded for Saric and their own 2017 1st rd pick. Got a problem with that.
The only NBA player they traded after breaking up a 34 win team was MCW, and he's on the bench in Milwaukee, they have the Laker pick next year which will probably be 6-10.
Had Hinkie stayed pat, doubtful this team would have won more than 25 games a year, they would have picked 4-8th the last three years, they'd have no pick next year, no extra 1st rd picks, no Noel, RoCo, Holmes or probably McConnell. They'd be really bad with no future. Sorta like the Kings or Nets.