The actual simmons quote is
4:30 pm (PT): Thanks to rumors that the Celtics might trade the No. 5 pick, Wally Szczerbiak and Delonte West for a soon-to-be 32-year-old shooting guard coming off double ankle surgeries (Ray Allen), I just spent the last 20 minutes on basketball-reference.com trying to find one great shooting guard who didn't decline significantly in Years 12 through 14 of his NBA career. Here's the list: Reggie Miller. That's it. Also, I just threw up in my mouth and some of it went up the back of my nose.
Jordan's scoring did drop from years 12-15:
31ppg to 30 to 26 to 21
FG% also dropped 49 to 47 to 42 to 44
Not a precipitous dropoff except for the last year in ppg
he is right that Reggie's numbers in years 13 & 14 were about the same as years 11&12