Gregg Popovich coach 92 Developed Parker, Ginobili, Leonard from raw to elite. Countless role players had career years under Pop. Erik Spoelstra coach 85 Excellent at player improvement. Bam Adebayo became a star under Spo. Tyler Herro developed significantly. Phil Jackson coach 82 Maximized Jordan, Pippen, Kobe, Shaq. Also elevated role players like BJ Armstrong, Rick Fox, Ron Harper. Kenny Atkinson coach 82 Elite player developer; multiple Nets players had career-best seasons under him 5 Larry Brown coach 80 Iverson had his best years under Brown. Chauncey Billups became a Finals MVP. Strong at getting peak performance. 6 Pat Riley coach 78 Maximized existing stars (Magic, Ewing) rather than developing unknowns. Strong at getting peak performance. 6 Red Holzman coach 78 Players thrived in his balanced system; maximized team-oriented skill sets 6 Don Nelson coach 78 Made unconventional players effective (point forward concept). Baron Davis, Dirk Nowitzki development partly under Nellie. 9 Chuck Daly coach 75 Maximized a roster without a top-5 player. Got peak performance from Isiah, Dumars, Laimbeer, Rodman. 9 Jerry Sloan coach 75 Stockton and Malone reached their potential under Sloan. Also developed Deron Williams, Andrei Kirilenko. 9 Steve Kerr coach 75 Curry went from All-Star to MVP under Kerr. System elevated shooters. Less known for developing raw talent. 12 Jack Ramsay coach 72 Known for getting steady improvement from young players and journeymen 12 Tom Thibodeau coach 72 Players improve defensively dramatically; offensive development more limited 12 Quinn Snyder coach 72 Strong development system; multiple players improved significantly in Utah 15 Ime Udoka coach 65 Grant Williams, Derrick White improved defensively; team-wide defensive buy-in 16 Brett Brown coach 62 Developed young players through tanking years; TJ McConnell, Robert Covington improved 17 Stan Van Gundy coach 60 Helped Orlando shooters thrive in spread system; moderate overall development 17 Doc Rivers coach 60 Players generally performed at expected levels under Rivers. Not known for significant player development. 19 Terry Stotts coach 58 CJ McCollum improved steadily; some role players thrived but no dramatic jumps 20 Monty Williams coach 55 Mikal Bridges and Cam Johnson improved under him; mixed results with young Pistons 21 Sergio Scariolo coach 45 International player development strong; NBA development record too limited 21 Darvin Ham coach 45 Austin Reaves improved; limited development of other players in short tenure 23 Rick Pitino coach 40 Limited evidence of NBA player development; college was his strength 23 Tom Izzo coach 40 College player development exceptional; no NBA player improvement data 25 Mike Montgomery coach 35 Limited sample size in NBA; college was his development strength