Coaching's No. 1 mystery continues

If you, like me, thought we might get some clarity from Gregg Popovich about his future on the Spurs' bench after San Antonio's season ended Wednesday night ... then we're both gullible

There is usually no coach in the NBA faster when it comes to racing to the postgame interview microphone than 73-year-old Gregg Popovich.

That’s obviously because he wants to get those pesky media duties over with as quickly as possible.

So was it a clue late Wednesday when Popovich took longer than usual to show for his final press obligation of the seas…