Here's why the Spurs defense regressed

Soobum Im-USA TODAY SportsAfter leading the league in defense by a wide margin, San Antonio has just been decent recently -- the PtR staff take on this issue and more in this week's installment of In The Bonus.

1 - The Spurs' defense has been mediocre in recent weeks. Are the absences of Duncan and Leonard the only reason why that's happened?

Michael Erler: There's lots of reasons, from the absences of their best two defensive players to a tougher schedule against some of the better offensive teams to the team just being in a bit of a rut. It would've been hard for them to keep up the pace they started the year with. I think even the players would admit they were playing a bit over their…