Byron Scott Changes Tune On JJ Redick After Assistant Coaching Hires

Byron Scott is feeling MUCH better about JJ Redick leading the Lakers ... telling TMZ Sports he's more confident in his chances at success after bringing in some experienced coaches to be his assistants.

Scott -- a former Lakers player and coach himself -- spelled it out to us at LAX this week ... admitting he initially felt L.A. made a mistake in handing the reins to a guy with zero experience on the bench.

"I mean I got a lot of respect for him because of what he's been able to do in the league. But when you talk about coaches, everybody talked about they wanted to get an experienced coach," Scott said. "He has no experience."

One of Redick's first tasks was to fill out his staff ... and…