For my money, the best offensive coach is Flip Saunders. The best defensive coach is Phil Jackson.
I don't value Popovich that highly. He's Jeff Van Gundy with good players.
I'm a big believer in Jerry Sloan (although his stock is falling fast in my book), Rick Carlisle, Nate McMillan, George Karl, Dwane Casey, Doc Rivers, Pat Riley, Eddie Jordan, Mike D'Antoni, Maurice Cheeks, Avery Johnson, and Terry Stotts. I give a grudging acknowledgement to Larry Brown.
I'm not a believer at all in Lawrence Frank, Mike Brown, Scott Skiles, Sam Mitchell, Mike Woodson, Rick Adelman, Bernie Bickerstaff, Greg Popovich, Jeff Van Gundy, Mike Fratello and Mike Montgomery.
Jury is still out on Bob Hill, Brian Hill, Byron Scott, and Mike Dunleavy.
Right now, the first person on my coaching ejector seat is Bernie Bickerstaff. 17 and 45 for Charlotte is ridiculous.