I know. My read on the situation is "rookie shooting guard" = player with no experience. Of course, we can argue quite a bit over this, and there is no easy way to verify it, unfortunately.
The BBs tended to be having lots of fun with the rules (note the funny quotes in each chapter), so I wouldn't put anything beyond them.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."